I'm excited for a time when it's mainstream to use self-published college textbooks too. A neighbor of mine is involved in the publishing industry... while I w

I'm excited for a time when it's mainstream to use self-published college textbooks too. A neighbor of mine is involved in the publishing industry... while I was walking her dog I tried to get an explanation for for why textbooks are so expensive and why they publish new versions every few years. The reason I got was "we put a lot of work into making the books, so the publishing companies need to get money somehow".