I just got a bunch of free books, including an old edition of Dumas' The Viscomte of Bragelonne, the "centenary edition" of selected works of Honore de Balzac (including "The Peasantry" and "Catherine de Medici"), and multiple volumes of a collection of Robert Louis Stevenson. My haul also included an old European history book, a biography of Napoleon/collection of Napoleonic writings, and several novels by Elizabeth George, with a couple Leon Uris books for good measure.
There were also several books of interest to me as a writer needing grist for the mill's verisimilitude -- a detailed discussion of turn of the century New England vacationing, 18th-century American playhouses, some folklore stuff, "The Best Plays of 1950-1951" and the same for 1951-1952, with photos, which I may give to someone as a gift, and a book on the early liturgy "through Gregory the Great".
Happy days!