This Week's Finds in Mathematical Physics - HTML versions ........................................................................ John C. Baez reserves all rights to "This Week's Finds of Mathematical Physics" , in all forms, including but not limited to all printed and electronic forms. You have permission to copy this material for personal use, but for nothing else. In particular, I do not allow proprietary or for-profit use. All the written text here is copyrighted by me except for quotations written by other people. However, in this collection there are many pictures that I do not hold the copyright to. These pictures are not necessarily in the public domain. If you wish to use them, find the copyright owners and talk to them. If you have any questions please contact me. John C. Baez