Free Books on Mathematics VII

1. Mathematics under the Microscope by Alexandre Borovik
2. What is and what will be: Integrating spirituality and science by Paul Budnik
   

Fractals

1. Fractals in the Plane - the Ergodic Theory Methods by F. Przytycki, and M. Urbanski
2. Conformal Dynamics by Curt McMullen
3. Fractals by P. G. Dixon
   

Graph Theory

1. Graph Theory with Applications by J.A. Bondy, and U.S.R. Murty
2. Graph Theory by Reinhard Diestel
3. Interactive Graph theory tutorials by Chris K. Caldwell
   

Coxeter groups

1. Miscellaneous facts about Coxeter groups by Robert B. Howlett
2. Buildings, BN-pairs, Hecke algebras, classical groups by Paul Garrett
   

Nielsen Fixed Point Theory

1. Nielsen fixed point theory, Geometric group theory by Ross Geoghegan
   

Permutation Puzzles

1. Mathematics of Rubik's cube by David Joyner