I have to say that my experience is similar to Nekokami. It also seems to me that the textbook publishers are continually publishing new versions of textbooks. They are not doing this because a course has changed, but only to insure that students will have to buy the new textbook and not a used copy. Why on earth do we need an 11th edition of first year calculus? Why does it cost $175? Why do the professors and universities support the practices of the textbook publishers?
On one hand e-books would be great for students, but I could see textbook publishers loving them as well. For one thing it would elliminate used copies of textbooks, and the publishers would no longer have to go through the expense of revising their editions every three years or so.
Personally, I'd like to see more open-textbook projects, and this could really flourish in an e-book environment.
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