Most Downloaded College Textbooks PDF 2025 – Top 10 Picks for Students
Why This List Matters
With thousands of titles across dozens of academic categories, choosing the right textbook can be overwhelming. That’s why we’ve compiled a list of the top 10 most downloaded textbooks by real students on CSTBooks.com this year.
These are affordable, DRM-free, and available in instant download PDF/ePub formats — perfect for studying on the go.
Top 10 Best-Selling eTextbooks on CSTBooks (2025)
1. Campbell Biology, 12th Edition – PDF
One of the most trusted biology textbooks worldwide. Perfect for college-level life science, AP Bio, or MCAT prep.
2. Fundamentals of Nursing, 10th Edition – ePub/PDF
A go-to for nursing students preparing for clinicals and NCLEX. Easy to navigate with visuals and real-world scenarios.
3. Principles of Microeconomics, 9th Edition – PDF
A favorite among Econ majors. Covers core microeconomic concepts in simple language.
4. Calculus: Early Transcendentals by Stewart – PDF
This calculus textbook is still a classic. Ideal for engineering, physics, and math majors.
5. Our Sexuality, 14th Edition – PDF
Popular in sociology and psychology programs. Covers human sexuality in a modern, inclusive way.
6. Organizational Behavior, 17th Edition – PDF
Essential for business students. Learn how people behave in professional settings and how to lead effectively.
7. Essentials of Human Anatomy & Physiology, 13th Edition – PDF
Perfect for pre-med and health science students. Clear diagrams and practical clinical insights.
8. Psychology, 5th Edition by Ciccarelli – PDF
Introductory psychology at its best — used by thousands of undergrads globally.
9. Medical-Surgical Nursing, 14th Edition – ePub
One of the top nursing school textbooks. Prepares students for med-surg rotations and exams.
10. Macroeconomics, 9th Edition by Mankiw – PDF
Clear, concise, and widely used by top universities. A must-have for any econ major.
Why Students Love CSTBooks
- No DRM: Keep your books forever, on any device
- Save up to 90% vs. publisher prices
- Instant download – no waiting, no shipping
- 7-day refund policy if the book isn’t right
Looking for Something Else?
If you can’t find a textbook you need, submit a request — just send us the ISBN or Amazon/VitalSource link, and we’ll try to get it for you at a student-friendly price.