There are multiple places you can find study books: college bookstores, general bookstores, online retailers and online resources.

College bookstores: This is the most obvious place to start, as they will carry a wide selection of textbooks for your courses.

Bookstores: some of the better bookstores have a decent selection of study books for your courses and career

Online retailers: carry a vast selection of new and used textbooks. You can often find them at a discount compared to the college bookstore.

• AbeBooks: An online marketplace specializing in used, rare, and out-of-print books, AbeBooks is a treasure trove for finding older editions or hard-to-get study materials. Their listings come from various sellers worldwide.
• Amazon: A giant in online retail, Amazon offers a vast selection of new and used study books, encompassing various subjects. They frequently have discounts compared to college bookstores.
• Barnes & Noble: Another major bookseller, Barnes & Noble offers a large collection of academic books, including textbooks, study guides, and reference materials. They also provide student discounts.
• Better World Books: This online retailer sells new and used books, with a focus on charitable donations. A portion of their proceeds goes towards supporting literacy and education initiatives around the world. They also have international shipping.
• Blackwell's: A prominent academic bookseller, Blackwell's caters specifically to students and educators. They offer a comprehensive stock of textbooks, study guides, and scholarly resources, with international shipping options.
• TextbookRush: Specializing in college textbooks, TextbookRush is a platform that connects students with sellers offering new, used, and rental textbooks. Their international shipping options make them a convenient option for students worldwide.
• ThriftBooks: An online retailer specializing in used books, ThriftBooks offers a wide variety of academic books at discounted prices. They often have student deals and ship internationally.

Online resources: There are a number of websites that offer free or discounted textbooks. These resources can be a great option if you're on a budget and/or want to be able to search text in your study book. Here are some examples:

• Directory of Open Access Books (DOAB): is a searchable directory of openly available academic books, including textbooks and monographs.
• OpenStax: offers free textbooks for a variety of subjects.
• Project Gutenberg: offers free ebooks of classic literature and other works.
• Library Genesis: (use with caution as it may have copyright issues in some countries) is a vast repository of academic books and articles.