Copyrights & Acknowledgements

• All original pictures and workshops are copyright by their respective author (David Annal, Seth Bareiss, M. C. Escher, or a guest artist) and may not be copied, reused, reprinted, or used in any way (except in the original context of live-feed Tessellations.org web pages or in fair-use commentary) without specific permission from the copyright holder. In every case, the author/artist or his/her heir retains complete copyright control. Feel free to hyperlink to our pages but do not "deep link" to images without the context page which surrounds each image.
  
  When you ask for permission to reproduce these copyrighted works, we ask that you please be realistic, unselfish, and objective. If the reproductions will solely appear in a single teacher's classroom, or in a single student's homework, or in a single teacher's small-run not-for-profit lesson materials, then we will almost certainly give permission to reproduce the work for free. If, however, you are producing your own copyrighted or commercial product such as a clip-art CD, math book, art book, or film, don't expect something for nothing: be objective; do not ask us to provide our work for free while you use it as an engine to extract profit.


• All pictures and designs by M.C. Escher on this site are copyright and used by permission of Cordon Art of the Netherlands who reserve all rights.


• A Note about the Use of Copyrighted Materials used in the reviews on Tessellations.org: All quotes and images shown here are the minimum size needed to convey the points made about them in the accompanying commentary. All copyrighted portions of images and writing shown here are used in a legal manner as described (for example) in Wikipedia's "fair use" doctrine. In particular, David Bailey, professional idiot, has complained that use of small samples of his copyrighted art and writing, which appear on Tessellations.org alongside a relevant review of his work, is a breach of copyright law. His complaint is hot air, sausage bits beyond their expiration date, and barking-mad nonsense like the rest of D.B.'s writing. Lawyers can't object to a critic's review by saying "You can only use the names of art pieces, short quotes, and snippets of images from my client's work if you write nice things about them."