If you don’t have luck with the book’s title, try the author (surrounded in quotes) with or without the title. You might also mix up the file extension and use PPT or DOC; you never know what format the textbook might be in. Some of the categories of free textbooks here include economics and finance, marketing and law, IT and programming, accounting, statistics and mathematics, and engineering. Some business eBooks and the option to block ads are available with a business account. There’s a 30-day trial if you want to see what that’s like. To find only the free textbooks here instead of other things like tests, animations, or tutorials, be sure to select Open (Access) Textbook from the filtering menu. Some of the subjects you can filter by include social sciences, workforce deployment, education, business, arts, and science and technology. Within any category of free textbooks, you can copy the RSS feed link and use it in your RSS reader to get alerts when new books are added to MERLOT’s site. When you land on the textbook’s download page, you’re given a table of contents and other details about the book. There’s a PDF button you must click to reach the actual download page. There’s also sometimes an option for reading the textbook online. You’ll be happy to learn that there’s a remarkable number of subjects you can flip through here, including communication and writing, health and medical, math and stats, language learning, trades, and several others. Some of these free textbooks can be read online, and others are downloadable as EPUB, MOBI, and PDF textbooks. They are also available in editable document formats such as ODT. Choose Textbook from the side of the page to filter out all the other kinds of content you can find here, which includes lectures, guides, games, full courses, and case studies. Each download page provides a link to view the textbook online in your browser. Not all of the links are valid because some older ones have been taken down. If this is the case, you can reply to the thread and ask for an updated link, or start a new topic requesting help finding a book.