Good Graph on Textbook Costs and some advice

There is a brief article on textbook costs online in the Atlantic. Here is the link http://www.theatlantic.com/business/archive/2013/01/why-are-college-textbooks-so-absurdly-expensive/266801/ With respect to textbooks, their size and their cost, here is an interesting situation that I observed when I taught a course in multivariable calculus.  Many of the students had taken calculus in high school and only needed […]