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Key Takeaways:
To make the book easier to browse, each chapter starts with key takeaways that summarize the chapter's most important points.
WordPress is the world's largest content management system (CMS): software designed to make websites easier to manage and update without specialized technical knowledge.
This book is for people who want to learn to become WordPress developers: people who program in WordPress. Being a WordPress user or site owner is not highly technical, but being a developer is.
To get the most out of this book, you'll need curiosity, and some degree of comfort with three technical languages: HTML, CSS, and PHP. Your degree of comfort is up to you, but we won't be doing much to teach these languages themselves, only how to use them in WordPress.

Welcome to Up and Running! In this book, you'll be learning the principles of WordPress development. In other words, this book provides the core technical knowledge you need ...