A puzzle book that focuses on the inventions and ideas of the twentieth century's most revolutionary inventor, Nikola Tesla. Solve cryptograms and anagrams of Tesla's writing to learn how Tesla thought about technology and how he imagined the future. Science, technology, and invention themed crossword and word search puzzles. Also included are a number of puzzles from Tesla's historical rival, Thomas Edison. An answer key in the back of the book is great to refer to if you need help solving some of science's greatest mysteries. Spiral bound, 192-pages