The IT Pro collection of Books24x7 is comprised of popular computer technical books from a variety of well-known commercial and academic publishers. This continuously growing collection currently contains 20,000 titles (up from 1800 in 2002), focusing on practical books covering computer-related topics, including computer applications, programming, computers and society, and e-commerce. An independent editorial board of professionals from computer-related fields advises Books24x7 on content selection and topic coverage. Books24x7 and Safari Tech Books Online together help satisfy the need for computer books and manuals that have a relatively short shelf life but are in great demand by a broad range of users in the campus community to support their research and continuing education, as well as make many more copies available than normally would be otherwise. As of September 2008 access to this resource was expanded from a 3 simultaneous-user limit to an unlimited number of Stanford users.