PPT Slide
Gardening Tips for Painless Collection Weeding
Reed, Lawrence L. and Rodney Erickson. “Weeding: A Quantitative and Qualitative Approach.” Library Acquisitions: Practice and Theory. Vol. 17 (1993), pp. 175-181. (Usage data discussed on pp. 175-176).
“One rule of thumb suggests that fewer than six circulations in one year makes a book a good candidate for discarding.” Carey, p. 20.
“Although some...believe that everything in a research collection will eventually be of use to some researcher, simple circulation counts have repeatedly shown that a small proportion of any collection, especially of a large research collection, accounts for a large percentage of total circulation.” Bonk and Magrill, p. 318.