Our own catalogue of economics books has been retired as of March 2013.
Finding books in Economics
Google Books has an enormous catalogue of scanned books including many that can be previewed online.
Amazon UK has a large searchable online catalogue, also with some previews.
Worldcat, driven by 10,000 library catalogues, has very full bibliographic information and makes it easy to locate books in libraries.
Online textbooks for economics are included in our links to online text.
Open Library is an ongoing attempt to create a web page for every book ever published.
For historical material, Wikisource and Project Gutenberg have large numbers of copyright-expired texts.