"WordPress Hooks - Actions and Filters" was retired on July 6, 2019.

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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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Courses

Browse courses across an array of topics and disciplines.

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Workshops

Technology-focused presentations of tips, tricks, and tutorials.

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Conferences

Watch talks from influential industry leaders.

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Bonus Series

Bonus material is exclusive to Courses Plus membership and includes series covering new processes in design, development and illustration.