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Thomas van der Zel

Rotterdam, Netherlands

Open to Work

16,796

Total Points

•
2,483

CSS

2470 pts
Achievements

13 pts
Forum
•
2,326

Design

2326 pts
Achievements

0 pts
Forum
•
2,248

Development Tools

2248 pts
Achievements

0 pts
Forum
•
1,997

PHP

1997 pts
Achievements

0 pts
Forum
•
1,171

HTML

1145 pts
Achievements

26 pts
Forum
•
864

JavaScript

864 pts
Achievements

0 pts
Forum
•
518

Business

518 pts
Achievements

0 pts
Forum
•
502

Digital Literacy

502 pts
Achievements

0 pts
Forum
•
36

Python

36 pts
Achievements

0 pts
Forum

Points are earned whenever you take an important action on Treehouse.
Learn more about when and how points are earned.

Skills & Experience

Company

Thomas & Thomas
Job Title

CEO
Spoken Languages
- Dutch
- English

235 Achievements

Achievement
JavaScript Numbers

JavaScript Basics (Retired)

Achieved
Oct 9, 2017
Achievement
Adding a New Web Page

Introduction to HTML and CSS (2016)

Achieved
Oct 8, 2017
Achievement
Make It Beautiful with CSS

Introduction to HTML and CSS (2016)

Achieved
Oct 8, 2017
Achievement
HTML: The Structural Foundation of Web Pages and Applications

Introduction to HTML and CSS (2016)

Achieved
Oct 8, 2017
Achievement
Getting Familiar with HTML and CSS

Introduction to HTML and CSS (2016)

Achieved
Oct 8, 2017
Achievement
Finishing the Game

Introducing JavaScript

Achieved
Oct 8, 2017
Achievement
Introducing JavaScript

Introducing JavaScript

Achieved
Oct 8, 2017
Achievement
Function Parameters

Swift 2.0 Functions

Achieved
Jun 8, 2016
Achievement
Functions in Swift 2.0

Swift 2.0 Functions

Achieved
Jun 8, 2016
Achievement
Control Flow with Conditional Statements

Swift 2.0 Collections and Control Flow

Achieved
Jun 7, 2016
Achievement
Control Flow With Loops

Swift 2.0 Collections and Control Flow

Achieved
Jun 7, 2016
Achievement
Swift Dictionaries

Swift 2.0 Collections and Control Flow

Achieved
Jun 7, 2016
Achievement
Introduction to Collections

Swift 2.0 Collections and Control Flow

Achieved
Jun 7, 2016
Achievement
Swift Operators

Swift 2.0 Basics

Achieved
Jun 7, 2016
Achievement
Swift Types

Swift 2.0 Basics

Achieved
Jun 7, 2016
Achievement
An Introduction to Swift Programming

Swift 2.0 Basics

Achieved
Jun 5, 2016
Achievement
GET and POST Requests in a Browser

HTTP Basics

Achieved
Apr 5, 2016
Achievement
Introduction to HTTP

HTTP Basics

Achieved
Apr 5, 2016
Achievement
Laravel Forms

Laravel 4 Basics

Achieved
Jan 3, 2016
Achievement
Laravel & Databases

Laravel 4 Basics

Achieved
Dec 12, 2015
Achievement
Laravel Controllers

Laravel 4 Basics

Achieved
Dec 10, 2015
Achievement
Laravel Project Setup

Laravel 4 Basics

Achieved
Dec 10, 2015
Achievement
Laravel Getting Started

Laravel 4 Basics

Achieved
Dec 10, 2015
Achievement
Chrome DevTools Basics

Website Optimization

Achieved
Dec 10, 2015
Achievement
Error Handling

PHP Standards and Best Practices

Achieved
Dec 10, 2015
Achievement
Creating Distributable OOP Packages

PHP Standards and Best Practices

Achieved
Dec 10, 2015
Achievement
Autoloading and Composer

PHP Standards and Best Practices

Achieved
Dec 10, 2015
Achievement
Databases and International Concerns

PHP Standards and Best Practices

Achieved
Dec 10, 2015
Achievement
Starting Right with PHP Best Practices

PHP Standards and Best Practices

Achieved
Dec 10, 2015
Achievement
Workflows

Git Basics

Achieved
Dec 10, 2015
Achievement
Working With Remote Repositories

Git Basics

Achieved
Dec 9, 2015
Achievement
Merging

Git Basics

Achieved
Dec 9, 2015
Achievement
Branches

Git Basics

Achieved
Dec 9, 2015
Achievement
Getting Started With Git

Git Basics

Achieved
Dec 9, 2015
Achievement
Database Security

PHP & Databases with PDO

Achieved
Dec 6, 2015
Achievement
Queries & Results

PHP & Databases with PDO

Achieved
Dec 6, 2015
Achievement
Getting Started with PDO

PHP & Databases with PDO

Achieved
Dec 6, 2015
Achievement
Securing and Maintaining a MySQL Database

Database Foundations

Achieved
Dec 6, 2015
Achievement
SQL Calculating, Aggregating and Other Functions

Database Foundations

Achieved
Dec 3, 2015
Achievement
Contact Forms & Mailers

Building Websites with PHP

Achieved
Dec 2, 2015
Achievement
Slim and Templates

Building Websites with PHP

Achieved
Dec 1, 2015
Achievement
Dependency Management

Building Websites with PHP

Achieved
Dec 1, 2015
Achievement
Installing Programs

Console Foundations

Achieved
Dec 1, 2015
Achievement
Environment and Redirection

Console Foundations

Achieved
Nov 29, 2015
Achievement
Console Processes

Console Foundations

Achieved
Nov 29, 2015
Achievement
Console Users and Permission

Console Foundations

Achieved
Nov 29, 2015
Achievement
Moving Around in the Console

Console Foundations

Achieved
Nov 29, 2015
Achievement
Joining Relational Data Between Tables in SQL

Database Foundations

Achieved
Nov 25, 2015
Achievement
Manipulating Schema with SQL

Database Foundations

Achieved
Nov 25, 2015
Achievement
Creating Tables and Manipulating Data with SQL

Database Foundations

Achieved
Nov 19, 2015
Achievement
Reading Data from Databases with SQL

Database Foundations

Achieved
Nov 19, 2015
Achievement
Installing MySQL Server and MySQL Workbench

Database Foundations

Achieved
Sep 13, 2015
Achievement
Introduction to Data, Databases and SQL

Database Foundations

Achieved
Sep 13, 2015
Achievement
Scrum Artifacts

Scrum Basics

Achieved
Aug 25, 2015
Achievement
Scrum Events

Scrum Basics

Achieved
Aug 25, 2015
Achievement
Introducing Scrum

Scrum Basics

Achieved
Aug 25, 2015
Achievement
What is Agile?

Scrum Basics

Achieved
Aug 25, 2015
Achievement
JavaScript Variables

JavaScript Basics (Retired)

Achieved
Aug 4, 2015
Achievement
Introducing JavaScript

JavaScript Basics (Retired)

Achieved
Aug 4, 2015
Achievement
PHP Inheritance & Interfaces

Object-Oriented PHP Basics (Retired)

Achieved
Aug 4, 2015
Achievement
PHP Properties & Methods

Object-Oriented PHP Basics (Retired)

Achieved
Aug 4, 2015
Achievement
PHP Objects and Classes

Object-Oriented PHP Basics (Retired)

Achieved
Aug 4, 2015
Achievement
The Internet

How the Internet Works

Achieved
Jul 14, 2015
Achievement
Keyframe and Line Drawing Animations

Animating SVG with CSS

Achieved
Jul 10, 2015
Achievement
Transitions and Transforms

Animating SVG with CSS

Achieved
Jul 10, 2015
Achievement
Enhancing the SEO of a WordPress Theme

SEO for WordPress

Achieved
Jun 28, 2015
Achievement
Content Comes First

SEO for WordPress

Achieved
Jun 28, 2015
Achievement
Building a WordPress Plugin Settings Page

How to Build a WordPress Plugin

Achieved
May 31, 2015
Achievement
How WordPress Plugins Work

How to Build a WordPress Plugin

Achieved
May 30, 2015
Achievement
Running an Ecommerce Site Long Term

Ecommerce with WordPress and WooCommerce

Achieved
May 28, 2015
Achievement
More Advanced PHP for WordPress

PHP for WordPress

Achieved
May 26, 2015
Achievement
PHP Basics for WordPress

PHP for WordPress

Achieved
May 26, 2015
Achievement
Introduction to PHP for WordPress

PHP for WordPress

Achieved
May 25, 2015
Achievement
Extending WooCommerce

Ecommerce with WordPress and WooCommerce

Achieved
May 21, 2015
Achievement
Managing Orders in WooCommerce

Ecommerce with WordPress and WooCommerce

Achieved
May 21, 2015
Achievement
Managing Products in WooCommerce

Ecommerce with WordPress and WooCommerce

Achieved
May 21, 2015
Achievement
Setting Up WooCommerce

Ecommerce with WordPress and WooCommerce

Achieved
May 21, 2015
Achievement
Introduction to Ecommerce with WordPress

Ecommerce with WordPress and WooCommerce

Achieved
May 18, 2015
Achievement
WWW

How the Web Works

Achieved
Apr 28, 2015
Achievement
Why Version Control Matters

Git Basics

Achieved
Apr 14, 2015
Achievement
Custom Dashboard Widgets

Customizing the WordPress Admin Area

Achieved
Mar 24, 2015
Achievement
Controlling Admin Navigation

Customizing the WordPress Admin Area

Achieved
Mar 24, 2015
Achievement
Customizing the Login Screen

Customizing the WordPress Admin Area

Achieved
Mar 24, 2015
Achievement
Admin Color Schemes

Customizing the WordPress Admin Area

Achieved
Mar 24, 2015
Achievement
Responsive Patterns

Responsive Layouts

Achieved
Mar 24, 2015
Achievement
Media Queries

Responsive Layouts

Achieved
Mar 24, 2015
Achievement
Responsive Theory

Responsive Layouts

Achieved
Mar 24, 2015
Achievement
Listing Inventory Items

Build a Simple PHP Application

Achieved
Mar 13, 2015
Achievement
Adding a Contact Form

Build a Simple PHP Application

Achieved
Mar 13, 2015
Achievement
Computer Languages

Computer Basics

Achieved
Mar 7, 2015
Achievement
Computer Basics

Computer Basics

Achieved
Mar 7, 2015
Achievement
Creating the Menu and Footer

Build a Simple PHP Application

Achieved
Mar 4, 2015
Achievement
Simple Mobile Interface

Sketch Basics

Achieved
Mar 4, 2015
Achievement
Exporting Designs

Sketch Basics

Achieved
Mar 4, 2015
Achievement
Sketch Features

Sketch Basics

Achieved
Mar 4, 2015
Achievement
Introducing Sketch

Sketch Basics

Achieved
Mar 4, 2015
Achievement
Getting Started with PHP

Build a Simple PHP Application

Achieved
Mar 3, 2015
Achievement
PHP Internal Functions

PHP Functions

Achieved
Mar 3, 2015
Achievement
PHP Returns & Closures

PHP Functions

Achieved
Mar 3, 2015
Achievement
PHP Functions Basics

PHP Functions

Achieved
Mar 3, 2015
Achievement
PHP Loops

PHP Basics (Retired)

Achieved
Mar 3, 2015
Achievement
PHP Conditionals

PHP Basics (Retired)

Achieved
Mar 1, 2015
Achievement
PHP Datatypes

PHP Basics (Retired)

Achieved
Mar 1, 2015
Achievement
PHP Data & Structure

PHP Basics (Retired)

Achieved
Feb 28, 2015
Achievement
PHP Getting Started

PHP Basics (Retired)

Achieved
Feb 28, 2015
Achievement
Getting Started with CSS

CSS Basics (2014)

Achieved
Feb 28, 2015
Achievement
Combine and Minify Assets

Introduction to Front End Performance Optimization

Achieved
Feb 28, 2015
Achievement
Optimize Assets

Introduction to Front End Performance Optimization

Achieved
Feb 28, 2015
Achievement
Measuring Performance

Introduction to Front End Performance Optimization

Achieved
Feb 28, 2015
Achievement
Planning for Performance

Introduction to Front End Performance Optimization

Achieved
Feb 28, 2015
Achievement
Protecting Yourself With Contracts

How to Freelance

Achieved
Nov 4, 2014
Achievement
Establishing a Proper Workflow

How to Freelance

Achieved
Nov 4, 2014
Achievement
Introduction Variables

JavaScript Foundations

Achieved
Nov 4, 2014
Achievement
Pricing and Project Proposals

How to Freelance

Achieved
Nov 2, 2014
Achievement
Finding Your First Project

How to Freelance

Achieved
Nov 2, 2014
Achievement
Starting a Freelance Career

How to Freelance

Achieved
Nov 2, 2014
Achievement
Functions

Introduction to Programming

Achieved
Nov 2, 2014
Achievement
Objects and Arrays

Introduction to Programming

Achieved
Nov 2, 2014
Achievement
Control Structures

Introduction to Programming

Achieved
Nov 2, 2014
Achievement
Basics

Introduction to Programming

Achieved
Nov 1, 2014
Achievement
Setup a Bootstrap Theme

From Bootstrap to WordPress

Achieved
Nov 1, 2014
Achievement
A Template Hierarchy Review

The WordPress Template Hierarchy

Achieved
Oct 21, 2014
Achievement
Media Templates in WordPress

The WordPress Template Hierarchy

Achieved
Oct 21, 2014
Achievement
Custom Post Type Templates

The WordPress Template Hierarchy

Achieved
Oct 21, 2014
Achievement
Archive Templates in WordPress

The WordPress Template Hierarchy

Achieved
Oct 21, 2014
Achievement
Page and Post Templates in WordPress

The WordPress Template Hierarchy

Achieved
Oct 21, 2014
Achievement
Homepage Templates in WordPress

The WordPress Template Hierarchy

Achieved
Oct 21, 2014
Achievement
Core WordPress Theme Files

The WordPress Template Hierarchy

Achieved
Oct 21, 2014
Achievement
How WordPress Templates Work

The WordPress Template Hierarchy

Achieved
Oct 21, 2014
Achievement
Finishing Your WordPress Theme

WordPress Theme Development

Achieved
Oct 21, 2014
Achievement
Custom Homepage Templates in WordPress

WordPress Theme Development

Achieved
Oct 21, 2014
Achievement
Adding a Blog to a WordPress Theme

WordPress Theme Development

Achieved
Oct 21, 2014
Achievement
Custom Post Type Templates

WordPress Theme Development

Achieved
Oct 21, 2014
Achievement
Building Out WordPress Navigation

WordPress Theme Development

Achieved
Oct 21, 2014
Achievement
Building Page Templates in WordPress

WordPress Theme Development

Achieved
Oct 20, 2014
Achievement
The WordPress Loop

WordPress Theme Development

Achieved
Oct 20, 2014
Achievement
WordPress Header and Footer Templates

WordPress Theme Development

Achieved
Oct 20, 2014
Achievement
Working with CSS and JS in WordPress Themes

WordPress Theme Development

Achieved
Oct 20, 2014
Achievement
Starting a WordPress Theme

WordPress Theme Development

Achieved
Oct 20, 2014
Achievement
Local WordPress Development

Local WordPress Development

Achieved
Oct 20, 2014
Achievement
WordPress Plugin Best Practices

How to Make a Website with WordPress

Achieved
Oct 20, 2014
Achievement
Widgets and Custom Menus

How to Make a Website with WordPress

Achieved
Oct 20, 2014
Achievement
Custom Post Types and Fields

How to Make a Website with WordPress

Achieved
Oct 20, 2014
Achievement
Customizing WordPress Themes

How to Make a Website with WordPress

Achieved
Oct 20, 2014
Achievement
WordPress Themes

How to Make a Website with WordPress

Achieved
Oct 20, 2014
Achievement
Installing Wordpress

How to Make a Website with WordPress

Achieved
Oct 20, 2014
Achievement
Finding Good WordPress Plugins and Themes

How to Build a WordPress Blog Without Coding

Achieved
Oct 20, 2014
Achievement
Managing Comments on a WordPress Blog

How to Build a WordPress Blog Without Coding

Achieved
Oct 20, 2014
Achievement
Working with Media in WordPress Blogs

How to Build a WordPress Blog Without Coding

Achieved
Oct 20, 2014
Achievement
Posts and Pages in WordPress

How to Build a WordPress Blog Without Coding

Achieved
Oct 20, 2014
Achievement
Blogging with WordPress Overview

How to Build a WordPress Blog Without Coding

Achieved
Oct 20, 2014
Achievement
WordPress Admin Settings

WordPress Admin Settings

Achieved
Oct 20, 2014
Achievement
WordPress User Roles

WordPress User Roles

Achieved
Oct 20, 2014
Achievement
The WordPress Codex

The WordPress Codex

Achieved
Oct 19, 2014
Achievement
Owning a WordPress Site Long Term

WordPress for Website Owners

Achieved
Oct 19, 2014
Achievement
WordPress Community Management

WordPress for Website Owners

Achieved
Oct 19, 2014
Achievement
Working with Media in WordPress

WordPress for Website Owners

Achieved
Oct 19, 2014
Achievement
Adding and Editing Content

WordPress for Website Owners

Achieved
Oct 19, 2014
Achievement
Getting a WordPress Site

WordPress for Website Owners

Achieved
Oct 19, 2014
Achievement
Getting Started with WordPress

Getting Started with WordPress

Achieved
Oct 19, 2014
Achievement
Compass Layout and Typography

Compass Basics

Achieved
Oct 19, 2014
Achievement
Getting Started with Compass

Compass Basics

Achieved
Oct 17, 2014
Achievement
Advanced Sass Concepts

Sass Basics (retired)

Achieved
Oct 16, 2014
Achievement
Speeding up Workflow With Sass

Sass Basics (retired)

Achieved
Oct 15, 2014
Achievement
Variables, Mixins, and Extending Selectors

Sass Basics (retired)

Achieved
Oct 14, 2014
Achievement
Getting Started with Sass

Sass Basics (retired)

Achieved
Oct 14, 2014
Achievement
Moving Forward with UX

UX Basics

Achieved
Oct 14, 2014
Achievement
Tools UXers Use

UX Basics

Achieved
Oct 14, 2014
Achievement
How UXers Think

UX Basics

Achieved
Oct 14, 2014
Achievement
What Do User Experience Designers Do?

UX Basics

Achieved
Oct 14, 2014
Achievement
What is User Experience (UX)?

UX Basics

Achieved
Oct 14, 2014
Achievement
Better SEO Through Tools

SEO Basics

Achieved
Oct 14, 2014
Achievement
Better SEO Through Code

SEO Basics

Achieved
Oct 14, 2014
Achievement
Better SEO Through Content

SEO Basics

Achieved
Oct 13, 2014
Achievement
Introduction to SEO

SEO Basics

Achieved
Oct 13, 2014
Achievement
Finalizing the Project

Brand Identity Basics

Achieved
Oct 13, 2014
Achievement
Case Studies and Examples

Brand Identity Basics

Achieved
Oct 13, 2014
Achievement
The Brand Identity Design Process

Brand Identity Basics

Achieved
Oct 13, 2014
Achievement
Introduction to Brand Identity

Brand Identity Basics

Achieved
Oct 13, 2014
Achievement
The Logo Sprint

Logo Design Basics

Achieved
Oct 13, 2014
Achievement
Logo Design 101

Logo Design Basics

Achieved
Oct 13, 2014
Achievement
Applying Effects

Illustrator Foundations

Achieved
Oct 12, 2014
Achievement
Creating Home Page Assets

Illustrator Foundations

Achieved
Oct 12, 2014
Achievement
How to Draw in Illustrator

Illustrator Foundations

Achieved
Oct 12, 2014
Achievement
Adding Color and Type

Illustrator Foundations

Achieved
Oct 8, 2014
Achievement
Creating an Icon

Illustrator Foundations

Achieved
Oct 8, 2014
Achievement
Introduction to Illustrator

Illustrator Foundations

Achieved
Oct 8, 2014
Achievement
Workflow Basics

Photoshop Foundations

Achieved
Oct 8, 2014
Achievement
Slices & Save for Web

Photoshop Foundations

Achieved
Oct 8, 2014
Achievement
Vector Shapes

Photoshop Foundations

Achieved
Oct 8, 2014
Achievement
Type Tools

Photoshop Foundations

Achieved
Oct 8, 2014
Achievement
Masks Basics

Photoshop Foundations

Achieved
Oct 8, 2014
Achievement
Layer Basics

Photoshop Foundations

Achieved
Oct 8, 2014
Achievement
Workspace Basics

Photoshop Foundations

Achieved
Oct 8, 2014
Achievement
Design Foundations Final

Design Foundations

Achieved
Oct 7, 2014
Achievement
Becoming a Problem Solver

Design Foundations

Achieved
Oct 7, 2014
Achievement
Understanding Aesthetics

Design Foundations

Achieved
Oct 7, 2014
Achievement
Introduction to Design

Design Foundations

Achieved
Oct 7, 2014
Achievement
Color Theory

Aesthetic Foundations

Achieved
Oct 7, 2014
Achievement
Principles

Aesthetic Foundations

Achieved
Oct 7, 2014
Achievement
Elements

Aesthetic Foundations

Achieved
Oct 7, 2014
Achievement
Media Queries

Unused CSS Stages

Achieved
Oct 7, 2014
Achievement
CSS Animations

Unused CSS Stages

Achieved
Oct 7, 2014
Achievement
Flexbox Layout

CSS Layout Techniques

Achieved
Oct 7, 2014
Achievement
Grid Layout

CSS Layout Techniques

Achieved
Oct 7, 2014
Achievement
Positioning Schemes

CSS Layout Techniques

Achieved
Oct 7, 2014
Achievement
Float Layout

CSS Layout Techniques

Achieved
Oct 7, 2014
Achievement
Display Modes

CSS Layout Techniques

Achieved
Oct 7, 2014
Achievement
Transitions and Transforms

Unused CSS Stages

Achieved
Oct 7, 2014
Achievement
Gradients

CSS Foundations

Achieved
Oct 7, 2014
Achievement
Flexbox and Multi-Column Layout

Unused CSS Stages

Achieved
Oct 6, 2014
Achievement
Web Typography

CSS Foundations

Achieved
Oct 5, 2014
Achievement
Backgrounds and Borders

CSS Foundations

Achieved
Oct 5, 2014
Achievement
CSS Box Model

CSS Foundations

Achieved
Oct 3, 2014
Achievement
Text, Fonts, and Lists

CSS Foundations

Achieved
Oct 3, 2014
Achievement
Values and Units

CSS Foundations

Achieved
Oct 3, 2014
Achievement
Advanced Selectors

CSS Foundations

Achieved
Oct 3, 2014
Achievement
Selectors

CSS Foundations

Achieved
Oct 3, 2014
Achievement
Getting Started with CSS

CSS Foundations

Achieved
Oct 3, 2014
Achievement
Choosing Options

HTML Forms

Achieved
Oct 2, 2014
Achievement
Organizing Forms

HTML Forms

Achieved
Oct 2, 2014
Achievement
Form Basics

HTML Forms

Achieved
Oct 2, 2014
Achievement
Structuring Tables

HTML Tables

Achieved
Oct 2, 2014
Achievement
Table Basics

HTML Tables

Achieved
Oct 2, 2014
Achievement
Debugging HTML and CSS Problems

How to Make a Website

Achieved
Sep 30, 2014
Achievement
Sharing a Website

How to Make a Website

Achieved
Sep 30, 2014
Achievement
Responsive Web Design and Testing

How to Make a Website

Achieved
Sep 30, 2014
Achievement
Adding Pages to a Website

How to Make a Website

Achieved
Sep 30, 2014
Achievement
Styling Web Pages and Navigation

How to Make a Website

Achieved
Sep 30, 2014
Achievement
Customizing Colors and Fonts

How to Make a Website

Achieved
Sep 30, 2014
Achievement
CSS: Cascading Style Sheets

How to Make a Website

Achieved
Sep 30, 2014
Achievement
Creating HTML Content

How to Make a Website

Achieved
Sep 30, 2014
Achievement
HTML First

How to Make a Website

Achieved
Sep 30, 2014
Achievement
Beginning HTML and CSS

How to Make a Website

Achieved
Sep 30, 2014
Achievement
Newbie

Achieved
Sep 30, 2014