A collection of approx. 110 LITTLE BLUE BOOKS, plus 7 Index booklets and an order blank card; published by Haldeman-Julius Company, Girard, Kansans, c. 1910s-1970s. Includes two Margaret Sanger (14; Each approx. 5in x 3 1/2in. Only one or two duplicates. Condition: overall Good; a couple with chipping/losses corners; three with missing/detached covers; some pencil notations. General subjects include: SEX / HEALTH, AND RELATED ISSUES: 14-What Every Girl Should Know (Sanger); 137-Home Nursing; 189-Eugenics Made Plain; 372-Problems of Birth Control and Over-Population (2 copies); 761-Food and Diet; 1126-Eating for Health; 1435-Constipation and Its Correction by Exercise; 1553-Beneficial Exercises for Nervousness and Indigestion; 1443-Daily Exercises for Busy People; 1600-Questions and Answers About Birth Control (Sanger); 1638-Notes on Cases of Sexual Suppression. SPECIAL INTEREST / HISTORY: 150-Lost Civilizations; 286-Prostitution in the Ancient World; 445-Psychical Research Volume 1; 755-The Five Civilized American Indian Tribes; 976-Casanova History's Greatest Lover; 1132-New Light on Witchcraft; 1685-The History and First Principles of Insurance. SELF-IMPROVEMENT / HOW-TO: 459-How to Write Telegrams Properly; 550-Essays on Art and Self-Reliance; 748-Elementary Plane Geometry Self Taught; 857-Arithmetic Self Taught Part II; 1003-How to Think Logically; 1069-The Conquest of Fear; 1357-What You Should Know About Law; 1358-How to Acquire Good Taste; 1422-How Businessmen Avoid Litigation; 1555-Rules for Success in Business; 1566-How to Conduct a Love Affair (covers missing); 1676-How the World's Greatest Scholar Can Help You; 1726-How to Think Creatively. SCIENCE / TECHNICAL: 408-An Introduction to Einstein's Theory of Relativity; 608-The Origin and Development of the Atomic Theory; 679-Chemistry for Beginners; 1050-X-Ray, Violet Ray and Other Rays; 1280-Facts You Should Know About Heat; 1323-Facts You Should Know About Light; 1327-Facts You Should Know About Sound; 1352-The Chemistry of Familiar Things; 1429-Airplanes and How to Fly Them. POLITICS / LAW: 198-The Majesty of Justice; 575-Essays in Ethics; 638-The Crime of Poverty; 687-U.S. Constitution etc.; 872-A Manual of Parliamentary Law; 1257-How to Become an American Citizen (missing cover); 1398-War, What For?; 1697-Socialism and the Trade Unions. RELIGION / PHILOSOPHY / IDEAS: 61-What is Religion?; 185-The Gods, A Lecture; 211-The Idea of God in Nature; 225-On a Certain Condescension in Foreigners; 446-The Psychology of Religion; 548-Essays on History and Intellect; 549-Essays on Nominalist and Realist, Gifts and the Over-Soul; 890-Epigrams of Nietzsche; 982-The Real Mary Baker Eddy; 1282-Guilt and Bad Conscience; 1281-What is Good and Evil?; 1335-Can Knowledge Be Made Popular?; 1536-Facing Death Fearlessly; 1618-Why I Reject the Idea of God; 1619-Sir James Jeans' "Mathamatical God"; 1652-The Origin of War and the Philosophy of Conflict. CLASSICS / THEATER: 371-Empedocles on Etna; 475-Essays on Aeschylus; 642-New Atlantis; 799-The Deserted Village; 842-Aristophanes The Wasps; 1569-Boccaccio-Lover and Chronicler of Love; 1670-Death's Old Comedy. FICTION / LITERARY: Consisting of 38 total, European and American authors, fiction and non-fiction, including one Upton Sinclair, 633-Prince Hagen; two Jack London, 30-What Life Means to Me (dampstaining/loss to cover), and 148-The Strength of the Strong; two Robert Louis Stevenson, 311-A Lodging for the Night, and Virginibus Puerisque; and nine H. G. Wells, 161-The Country of the Blind (2 copies), 165-Discovery of the Future, 925-The Empire of the Ants and Other Stories; 927-The Stonel Bacillus and Other Stories, 1660-A Woman's Heart and Other Strories, 1661-The Man Who Could Work Miracles, 1662-The Valley of Spiders and Other Stories, and 1663-The Treasure in the Forest and Other Stories.