(TechCrunch) — Textbooks are an incredibly expensive investment. And the majority of the time, you only need the textbook for a short duration. College textbook rental startupBookRenter is trying to make the process of buying textbooks more affordable by loaning books to students for a fixed duration. And today, the company is announcing that it received $10 million in a Series B financing round led byNorwest Venture Partners with Storm Ventures and Adams Capital Managementparticipating in the round. This brings the startup’s total funding to $16 million.