An Introduction to Formal Languages and Automata
Peter Linz
Universal Algebra
P. M. Cohn
Yup’ik Eskimo dictionary
Steven A. Jacobson
Richard Rohr and the Enneagram Secret
Don Veinot & Joy Veinot & Marcia Montenegro
The Comprehensive LaTeX Symbol List
Scott Pakin
Mathematical Morphology in Image Processing
Edward Dougherty
Optical Science and Engineering (1)