This work is licensed under a
Creative Common
Attribution-NonCommercial-ShareAlike 3.0 Unported License.
This license is
available at
creativecommons.org/licenses/by-nc-sa/3.0/.
I would have preferred to license the book under the less
restrictive CC-BY-SA license. But unfortunately there are
a few unscrupulous
organizations who search for and find freely licensed books,
and then publish and sell virtually unchanged copies of the books on a
print on demand service such as LuLu or CreateSpace. CreateSpace
has (thankfully) added a policy that gives the wishes of the actual
copyright holder preference over a non-copyright holder attempting
to publish a freely licensed work. Unfortunately there are many
print-on-demand services and very few have as well-considered a policy
as CreateSpace.
Regretfully, I added the NC element to the license
this book to give me recourse in case someone tries to clone this
book and sell it commercially. Unfortunately, adding NC limits uses
of this material that I would like to permit. So I have added this
section of the document to describe specific situations where
I am giving my permission in advance to use the material in this book
in situations that some might consider commercial.
-
If you are printing a limited number of copies of all or part of
this book for use in a course (e.g. like a coursepack), then
you are granted CC-BY license to these materials for that purpose.
- If you are a teacher at a university and you translate this book
into a language other than English and teach using the translated book, then
you can contact me and I will granted you a CC-BY-SA
license to these materials with respect to the publication of your
translation. In particular you will be permitted
to sell the resulting translated book commercially.
If you are intending to translate the book, you may want to contact me
so we can make sure that you have all of the related course materials so
you can translate them as well.
Of course, you are welcome to contact me and ask for permission if these
clauses are not sufficient. In all cases, permission to reuse and
remix this material will be granted as long as there is clear added value
or benefit to students or teachers that will accrue as a result of the
new work.
Charles Severance
www.dr-chuck.com
Ann Arbor, MI, USA
September 9, 2013