This book is truly wonderful. Probably my favorite math book.
Those of you who may be interested in convex optimization may want to take a look at these "MIT OCW-like" pages:
http://see.stanford.edu/SEE/courseinfo.aspx?coll=2db7ced4-39... http://see.stanford.edu/SEE/courseinfo.aspx?coll=523bbab2-dc...
and those who are interested in convex optimization and Python programming, might want to take a look at these: