LC ClassificationTL780-785.8

1880s(6) 1890s(6) 1900s(11) 1910s(7) 1920s(7) 1930s(9) 1940s(9) 1950s(7) 1960s(6) 19th century(10) adventure(8) animals(15) astrophysics(6) aviation(24) Biographies(8) biography(243) California(6) chemistry(21) children(29) children's(41) children's literature(6) Crowley(5) digital(5) engineering(78) exploration(17) flight(8) Germany(16) graphic novel(13) history(222) history of science(32) imagination(5) informational(6) informative(5) inventions(8) inventors(18) juvenile(12) kids(13) machines(7) math(14) military(9) military history(9) missiles(24) moon(26) nasa(67) North America(5) nuclear(11) nuclear weapons(7) numbers(12) occult(29) outer space(39) picture book(58) planets(6) poetry(7) politics(6) popular science(6) preschool(5) reference(16) rockets(299) science(397) Science & Technology(12) science fiction(8) scientists(30) solar system(23) space exploration(89) space flight(66) spacecraft(9) stars(10) Thelema(17) usa(29) vehicles(17) war(6) weapons(5) women(7)