Entire texts now exist on line, or can be pieced together from places on-line. There are also "course notes" and slides from lectures that can be used to cover most or all of the topics in a principles course. Why make your students buy a $100 book? You would think the profs are getting the 18 bucks.
-------------------- >My god. Amazon sez it's $120.70. Assuming 15%, he gets $18.11 apiece. Doug
