"A puzzle-based introduction to computer-programming concepts.This computer coding book immediately sets itself apart by not using computers at all. Instead, readers write codes and complete puzzles by pencil and paper, play games in real life, and even do some arts and crafts...Appealingly, this positive, highly accessible coding guide needs no computers." -- Kirkus
"Concepts such as algorithms, optimization, constraints, cryptology, and binary code are introduced with fun and workable hands-on activities...A strength of this title is its clarity. The conversational tone is perfect for the intended age range. VERDICT An applicable resource for intro to coding clubs at schools or libraries. An engaging introduction to basic and intermediate fundamentals of computer science and coding through various screen-free activities."—School Library Journal
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