What are possible legal ways to obtain a textbook for free? I'm not sure whether this is such a great question, and I'm not looking at illegal ways, but is there any way to obtain textbooks for free (legally)?

Answers very much appreciated.
Here are a few ways that you should look into:


Check your university library
If your library doesn't have it, ask them about doing a interlibrary loan
Talk to your professor. They can be insightful and understanding about these things so they might be able to lend you a copy.
Search online for ebook/PDF versions. I found that an old edition of a statistics book was available on the author's website for free.


If you are out of options with obtaining it for free then you can usually find a used copy at your book store or online for cheaper. 

Books certainly can be pricey, so in the future it helps if you factor these costs in when you apply for student loans/scholarships.