Online learning is an important approach to user education, information literacy and staff development. Librarians are increasingly involved in e-learning and teaching -- from designing and developing materials and programs to supporting individual and group learning using virtual learning environments. This overview and guide to virtual learning environments offers practical guidance about development, use, and delivery of online learning and teaching. Presented in a readable and visually attractive style, it includes ready-to-use aids such as checklists, questionnaires, charts and tables. Key areas covered are: models of online learning and teaching; the internet and Web -- using learning resources; virtual learning environments; electronic assessment; basic conferencing skills for tutors; managing online learning and teaching; moving from conventional learning and teaching to online. An excellent guide for all librarians interested in rapidly developing field.