W-HY PEOPLE USE THE LIBRARY 63 circulate recent titles to its clientele. Its distribution is almost certainly, however, less time-bound than that of any other major distributor of adult books, except, perhaps, the home collection. CIRCULATION RELATED TO “QUALITY”’ Finally, there is the basic, and perhaps the most important, classification of books, that is, by their “quality.” Does the American public library circulate many or few “good” books, however that term is defined?** Attempts which have been made to distinguish “good” from “bad” books (or “better” from “worse”) for the purpose of evaluating public library service have largely been limited to fiction. Although no generally satisfactory defini- tion of “quality” has been devised, the available classifications do provide some sort of differentiation within the general category of fiction. To what extent does the public library circulate “good” and “bad” fiction to adults? Although no single answer can be given to such a question, there are certain suggestions in the literature based upon the different definitions of “quality” employed (Table 31). Considerable variability appears be- cause of differences in clientele (for example, as between Carnovsky, 1935, and Krieg, 1939, the former reporting on an upper middle-class suburb and the latter on an industrial community) and differences in holdings (as between most other studies and Wilson & Wight, 1935, which reported on 4Some librarians have tended to define this characteristic in terms of the distinction between fiction and nonfiction, on the assumption that it is somehow “better” to read nonfiction. They have thus been particularly pleased at increases in the proportion of nonfiction in the circulation. As suggested above, however, the variations within these categories are so great that it is unsatisfactory to make them synonymous with a distinction by “quality.” Another possible classification deals with the “types” of fiction; in the public library of Kansas City, Kansas, 23 percent of the fiction cir- culation was composed of mysteries and 13 percent of westerns (Quinly, 1048).