id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
crl-16435	Urbano, Cristóbal; Zhang, Yin; Downey, Kay; Klingler, Thomas	Library Catalog Log Analysis in E-book Patron-Driven Acquisitions (PDA): A Case Study	2015-05-01	15	.pdf	application/pdf	8613	262	49	Also, although there has been a long history of studies on the use and users of OPACs (Online Public Access Catalogs) since their introduction in libraries, with most research using transaction log analysis methods, this approach has not been used to study the use of the library catalog as a way to access e-books, nor to study PDA programs.4 Over the last few years, several studies on e-book use and users reveal a mixed im- age involving both success and failure of e-book usage in libraries.5 Our findings also show that e-books used via the full bibliographic record more than two times before a triggered purchase have higher usage afterward.	cache/crl-16435.pdf	txt/crl-16435.txt