Thousands of thrilling facts and trivia from murderous cults to UFOs! Did you know legendary skyjacker D. B. Cooper was most likely a Boeing employee? How about

Conceptis has done it again--proving it still rules as the world’s leading developer of picture-logic puzzles. Link-Up Paint-doku offers a new way to train th

Hundreds of pix-cross puzzles to keep your brain and mind sharp! With over 500 pix-cross puzzles, this Big Book of Brain-Boosting Pix-cross Puzzles will be sure

"A work of enormous breadth, likely to pleasantly surprise both general readers and experts."—New York Times Book Review This revolutionary book provides fres

This book provides an introduction to the mathematical and algorithmic foundations of data science, including machine learning, high-dimensional geometry, and a