FiftyPage: Learn in 50 Pages

FiftyPage books teach one skill each, in 50 pages or less. Every chapter comes with a quiz, flashcards and practice, so you remember what you read.
Read anywhere
• Swipe between chapters, and pick up where you left off on any device.
• Save whole books for offline: read, take quizzes and swipe flashcards on a plane or the train, and your progress syncs when you're back online.
• Light and dark modes for day and night reading.
Remember what you read
• A quiz at the end of every chapter, with an explanation for every answer.
• Flashcards you swipe right when you know them and left when you don't.
• Spaced review that brings questions back just before you'd forget them, with an optional reminder when they're due.
Practice for real
• Run Python, JavaScript and other languages in the built-in Playground, with the code from every book.
• CompTIA Security+ SY0-801 practice: a free diagnostic, checkpoints and timed practice exams, all written by FiftyPage.
• A glossary for every book.
Topics include Python, SQL, JavaScript, web development, data science, machine learning, AI engineering and cybersecurity. Chapter 1 of every book is free to read, with its quiz and flashcards. Sign in to read the books in your FiftyPage account.
CompTIA and Security+ are registered trademarks of CompTIA, Inc. FiftyPage is not affiliated with, sponsored by or endorsed by CompTIA.