Are you a master Python coder? Prove it!

Coffee Break Python - Mastery Workout helps you boost your Python skills and reach mastery level. The approach is simple: you solve 99 really hard Python puzzles that get harder as you progress with the book.

A clear path to Python mastery!

How do grandmasters of chess become that way? They study thousands of chess positions​. ​They look at a chess position, ​​​commit to a solution, and compare ​​it against ​the "gold standard" -- the best move in a given position.​This book is the chess grandmaster​ way of learning Python. It offers you ​99 ​challenging, exclusive, and brand-new Python puzzles. ​Every puzzle points to gaps in your knowledge, challenges you to guess a solution, and then explains ​the result​.

​An easy, fun, and extremely effective way of not only learning but mastering Python -- day after day -- ​in your COFFEE BREAK PYTHON!

Burn ​99 new Python patterns into your brain and rewire your synapses.

Here's what research says about puzzle-based learning:

"Students who were quizzed after studying a short text could recall significantly more information than students who were asked to reread it"

-- Karpicke, 2007, Elsevier Journal of Memory and Language

​​Practice testing is scientifically proven to generate ​up to 44% better learning retention and ​efficiency.​

​​Simply put: quizzes and puzzles work! More than 100,000 Finxters and thousands of "Coffee Break Python" book customers have ​successfully improved their skills with code puzzles.

​Learning ​does not happen in a linear and orderly ​manner​. It's a probabilistic, chaotic, and iterative process of creating knowledge gaps in your brain -- and ​filling them with just the right information​ you need.

That's the premise of ​the "Coffee Break Python" textbook series.

​Here's how you will change by reading this book:

• Improve your ​level of deep ​Python code understanding.
• ​Surprise your peers with your newly acquired code speed reading skills.
• Enjoy the small daily doses of intellectual challenges​ ("Sudoku for coders").
• ​Improve your brain's working memory by hammering down the most important concepts.
• Learn all the ​advanced Python syntax elements.
• ​Discover your own skill level by tracking your puzzle-solving performance.
• Compare your skill level against other coders: are you a grandmaster of code?
• ​Enjoy the fun of rushing ​through very (very) hard Python ​puzzles.
• Get the best of all Finxter Python cheat sheets to revive 80% of the Python features in 20% of the time.
• ​​​Rock your ​upcoming code interviews and get your dream job!
• And take one step forward mastering the most popular programming language ON THE PLANET!