How to find free textboooks and e-books using Google
Going to university is expensive, and textbooks can make the bill go even higher. However, you don't have to break the bank to finance a good education; there are plenty of places on the Web where you can find and download free online books for nearly any course.
Google Search is both a very simple and complex beast and if you know a little bit about how it works you can find specific file types and e-books very easily.
The first place to start when looking for a textbook is Google, using the
filetype command. Type in filetype:pdf, followed by the name of the book you're looking for in quotes. Here's an example:
filetype:pdf "history of anthropology"
If you don't have any luck with the book's title, try the author (again, surrounded by quotes), or, you can also look for another type of file: PowerPoint (ppt), Word (doc), etc. You'll also want to check Google Scholar, a great place to find all sorts of academic-oriented content. Check out these specific search tips for Google Scholar that will help you drill down to what you're looking for quickly.
Hope you find this useful.