DANGEROUS BOOK FOR BOYS

[ series of printed fiction books and a ] series of printed non-fiction books in the field of outdoor recreation, wilderness survival, origami, history, knots, knot craft, general knowledge and trivia, science, experiments, do-it-yourself, home repairs, carpentry, woodworking, paleontology, entertainment, sports, English grammar and usage, physics, fishing, geography, timers, tripwires, codes, ciphers, crystal making, entomology, juggling, astronomy, the solar system, biology, first aid, literature, sailing, direction, navigation, the military, religion, planetary observation, animal training, nautical science, maps, atlases, poetry, magic tricks, light, linguistics, adventures, botany, hunting, fishing, cooking, hobbies, arts, crafts, gardening, weights, measurements, dating, games, puzzles, toys, pets, metal work, culture, and heritage