Here’s a recently released 80 page guide (in English) written by Dr. Till Kreutzer and made available online by UNESCO, Wikimedia Deutschland, and HBZ Library Services.
Finding creative commons licenses confusing? Then this recent report published by UNESCO, WIKIMEDIA and HBZ Library Services provides a clear guide on this issue. It lays out different licensing options, and then details six creative commons licenses, and when and how to employ them. It guides the user as to what license to choose, under what circumstances.
From the Editors Preface:
With this publication, we intend to provide interested individuals and organisations with practical guidelines for the use and application of open content licences: How do open content licences work? How do I choose the most suitable licence for my individual needs? Where can I find open content online? These are only some of the questions which these guidelines try to answer. By this, we hope to contribute to the informed use of open content licences.