Experiment with cryptography — the science of secret writing. Cipher and decipher codes: transposition and polyalphabetical ciphers, famous codes, typewriter and telephone codes, codes that use playing cards, knots, and swizzle sticks...even invisible writing and sending messages through outer space. Hours of intrigue and challenge. 45 diagrams.
Gauguin Art Activity Pack by Dover Stunning 3-book set includes: Color Your Own Gauguin Paintings, with 30 black-and-white illustrations; 16 Art Stickers, a colorful collection of miniatures; and Art Tattoos, featuring details from 4 paintings.
Dinosaurs Fun Pack by Dover, John Green A terrific 3-book set! Dinosaur Coloring Book: 45 detailed drawings of the Archaeopteryx, Stegosaurus, Tyrannosaurus, and more. Mighty Dinosaurs Stickers: 36 realistic illustrations of 9 different dinosaurs; Big Dinosaurs Tattoos: Spinosaurus, Stegosaurus & 2 more.
Find and Color Activity Book by Tony Tallarico, Sr. Loaded with fun-filled facts and ready to color, this giant treasury of 46 hidden picture scenes features big and busy double-page spreads of a swimming pool, comic book store, miniature golf course, birthday party, and more.
The Magic Moving Alphabet Book by Frank J. Moore 26 designs, one for each letter of the alphabet, that come to life and give the illusion of motion when viewed through the moiré screen provided.
Entertaining Mathematical Puzzles by Martin Gardner A mixture of old and new riddles covering a variety of mathematical topics: money, speed, plane and solid geometry, probability, topology, tricky puzzles, and more. 65 black-and-white illustrations.
