Licencing

The Book in General

The full contents of the book, including text and images, are released under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported license.

The full legaleze conditions can be found here, but the long and the short of it is the following:

• You can freely share and remix the material. I would appreciate it if you notify me if you do this, but this is not a requirement.

• When you use my material, you must attribute the work to me in this way:
  "Photo/text/illustration by Bjørn Christian Tørrissen, bjornfree.com"

• You may not use this work for commercial purposes. If you wish to do so, get in touch with me. Maybe we can work something out. Especially if there's an educational aspect to it.

• If you use the whole or parts of my work in something you create, your work must also be released under the same or a similar license.

I believe strongly in sharing ideas and skills in order to create a better world.

 

Particular images

A facsimile of the cover has been made available for free use of any kind, including commercial purposes. The image can be downloaded here and from the Wikimedia Commons.