Welcome to the Treehouse Library
This is a sample catalog of all the courses we offer. Browse by topic or difficulty. Sign up today and get access to our entire library. Treehouse students get access to workshops, bonus content, conferences, and more.
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Introduction to REST APIs
Many of the APIs you'll encounter on the Web use an underlying design idea known as REST, which stands for Representational State Transfer. Understanding what and how a REST API provides will help you build better and stronger APIs for your users.
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Slack for the Techdegree
Slack is a go-to tool for development teams to discuss projects and get work done. We use Slack in the Techdegree to give student developers and Treehouse staff a real-time chat environment for discussing the Techdegree.
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Introduction to NumPy
NumPy is short for Numerical Python. It is the fundamental package for scientific computing. You will see it at play in just about everywhere Python needs to deal with data. This course gives a gentle introduction to the powerful library.
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Creating User Experiences
Join us as we learn the basic principles of User Experience Design and how it shapes everyday interactions with products. By structuring products around users’ needs, we can ensure that the products do their job. You will learn how to meet users where they are, think through intuitive experiences, and create products that more effectively meet both your goals and your end users’ goals. This course will help you think more critically through the steps and decisions a user makes while interacting with your product. If you’re considering a career in User Experience (UX) or want to learn more about it, this course will expose you to how to design and plan around the people who use your product.
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The following items are scheduled to be released soon. You can also visit our content roadmap for more info.
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Course
Introduction to Algorithms
Algorithms are a fundamental topic in computer science, power many of the largest companies today and are used in making many decisions that affect our day to day lives - in obvious places like Google's PageRank algorithm to more obscure use cases like national security and local policing. In this introductory course, we're going to take our first steps towards understanding the world of algorithms and data structures. Before we can study individual algorithms we're going to spend time learning how to evaluate algorithms, how to make comparisons and how to develop algorithmic thinking
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Scraping Data From the Web
Almost any information you want is available on the Internet. Web scraping is a key tool for data mining that information allowing for web page exploration and collection for a variety of reporting. The tools and techniques used in this course allow for data to be collected that would otherwise not be easily accessible without robotic assistance.
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QA Engineering
Learn how to become an effective test engineer. Testing is something every developer must do to write effective and quality code, but going about what you should test and how to do it can be a challenging question. Quality Assurance is the practice of monitoring other developers' work and creating processes and tests that will ensure the product meets the end user’s expectations and limiting the amount of bugs that are released. This course will teach you how to become a Software Quality Assurance Engineer.
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Wireframing
Wireframing is a process that should occur early on in a website or app design project. In the early stages of a project, you (as well as others on your team) will have a lot of ideas and the best way to sort through those ideas is to start brainstorming. Wireframes are a visual artifact of this brainstorming, and the goal is to make them with minimal effort, as to encourage ideation and minimize exerting unnecessary effort on a sub-par idea. Whether you're a designer, a prospective designer, or (more generally) a person with product or marketing ideas...wireframes are a valuable tool for visualizing user experiences, iterating on ideas, and sharing ideas with others.
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Introduction to Data Structures
In computer science a data structure is a construct that allows us to organize and store data in our programs. In this course we're going to learn about two introductory data structures - arrays and linked lists! We'll look at common operations and how the runtimes of these operations affect our everyday code. For the rest of the course we're going to bring our knowledge of algorithms and data structures together to solve the problem of sorting data using the merge sort algorithm
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Cleaning and Preparing Data
We rely on data to answer important questions, whether we are trying to make the best business decisions or determine the effectiveness of a new medical treatment. But our analyses are only as accurate as the data we are using, and incorrect or “dirty” data can lead to incorrect conclusions and assumptions. Data preparation, also called “cleaning” or “scrubbing”, is an important part of ensuring our analyses are accurate and useful.
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Object-Oriented JavaScript By Example
Practice your object-oriented JavaScript skills by building a fun and interactive 'Four in a Row' game.
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Practice
Practice Properties in C#
In this practice session, you'll practice creating and using properties in C#.
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Practice Loops in C#
In this practice session, you'll practice using for and foreach loops in C#.
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Algorithms: Sorting and Searching
This course will look at algorithms in two categories: sorting and searching. We'll implement well-known sorting algorithms like selection sort, quicksort, and merge sort. You'll also learn basic search algorithms like sequential search and binary search.
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React Basics (Refresh)
React is a JavaScript library for building user interfaces. React makes building and maintaining the user interface of your application faster and easier by breaking it up into smaller, reusable components. It also helps eliminate the complexity that comes with updating your DOM elements when the user interacts with your application.
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React Components
Components are the core building blocks of a React application. This course will level-up your React skills by providing a better understanding of class vs. functional components, state and lifecycle in a component, and how to split your UI into reusable and composable components.
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Measuring Design
An essential part of the UX design process is measurement and validation. This course will provide an overview of the methods available for measuring the success of a design including A/B testing, surveys and usability testing. It will specifically deep dive into usability testing so that students will learn about what’s involved in running such a test, from gaining initial stakeholder buy-in to preparing a test plan and to presenting actionable findings.
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UX Content Strategy
With so many websites and apps offering similar content and features, you need to provide a unique experience to compete - something memorable and enjoyable that resonates with your users. UX Content is how it’s done. From your home page and product descriptions down to your error messages, UX content can turn generic interactions into memorable experiences. By establishing a unique voice and personality, you can create an environment that welcomes, supports, and inspires users during their visit. So in this course, we’ll discuss why UX Content is so important, where you need it, how to create it, and how to ensure it’s effective.
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Build a REST API with Express (Refresh)
In this course, you'll learn how to build a REST API with Express, a popular framework written for Node.js.
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Using SQL Databases with Node.js
In this course, you'll learn how to leverage the power of SQL databases within your Node.js applications.
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Organizing JavaScript with Modules
In this course, you'll learn how to organize JavaScript code using modules.