000   GENERALITIES

000   Computers, Loch Ness, Bigfoot, UFOs, Aliens
020   Libraries
030   Encyclopedias & World Record Books
060   Museums
070   Newspapers

130   Ghosts, Witches & the Supernatural
150   Optical Illusions, Feelings
170   Emotions, Values, Animal Rights

220   Bible Stories
290   Mythology, World Religions

300   Social Issues - immigration, racism, World Cultures
310   Almanacs
320   Government
330   Money, Working
340   Court System, Famous Trials
350   Armed Forces - Army, Navy, Air Force, etc.
360   Drugs, Environmental Issues, Titanic, Police, Firefighters
370   Schools
380   Transportation
390   Holidays, Folktales, Fairy Tales

410   Sign Language
420   Dictionaries, Grammar
430   German Language
440   French Language
450   Italian Language
460   Spanish Language
490   Hieroglyphics, Japanese Language

500   Science Experiments, Science Sets
510   Mathematics
520   Stars, planets, astronomy, space
530   Physical Science - force & motion, electricity, magnetism, light
540   Chemistry, Atoms & Molecules, Rocks and Minerals
550   Volcanoes, Earthquakes, Weather, Hurricanes, Tornadoes
560   Dinosaurs, Prehistoric Animals, Fossils
570   Forests, Rain Forests, Deserts, Mountains, Oceans, Evolution
580   Plants, Flowers & Trees
590   Animals & Insects

591
592   Worms, Invertebrates
593   Corals, Sea Invertebrates
594   Seashells, Snails, Octopus
595   Insects, Spiders
596
597   Fish, Frogs, Toads, Reptiles, Amphibians, Snakes
598   Birds
599   Mammals of the Land and Ocean, Whales

600   Inventions
610   Human body, Health
620   Rockets, Trains, Cars, Trucks
630   Farming, Farm Animals, Cats, Dogs, Pets, Horses
640   Cookbooks, Sewing
650   Secret Codes
660   How Food is made
670   Paper Making
680   Woodworking
690   Building

710   Art Appreciation, History of Art
720   Houses, Buildings
730   Origami, Paper Crafts
740   Drawing, Crafts
750   Painting
760   Printing
770   Photography
780   Music
790   Sports, Games, Magic, I Spy, Camping, Fishing, Racing, Hunting

810   Poetry, Plays, Jokes & Riddles
820   Shakespeare
860   Poetry in Spanish
890   Japanese Poetry, Haiku

910   Explorers, Atlases
920   Flags, People (Biography)
930   Archeology, Ancient Civilizations
940   Knights, Castles, World War I & II, European Countries
950   Asian & Middle Eastern Countries
960   African Countries
970   North & Central American Countries, Native American Tribes, American History, States
980   South American Countries
990   Pacific Islands, Australia, Hawaii, Arctic, Antarctica