The Handbook is divided into four sections: Foundations of Virtual Learning Environments; Schooling, Professional Learning and Knowledge Management; Out-of-School Learning Environments; and Challenges for Virtual Learning Environments. A variety of chapters representing different academic and professional fields are included. These chapters cover topics ranging from philosophical perspectives, historical, sociological, political and educational analyses, case studies from practical and research settings, as well as several provocative 'classics' originally published in other settings.