Overview
Don't move a muscle--read all about them! Did you know that...
- Without muscles you couldn't blink--or even breathe!
- Nearly 700 muscles control your life.
- Big or small, a muscle is made up of just one cell.
- Exercise doesn't give you more muscles, but it strengthens the ones you have.
Discover how muscles make us move--and see what it really looks like under your skin.
While major retailers like Amazon may carry Muscles (Our Muscular System), we specialize in bulk book sales and offer personalized service from our friendly, book-smart team based in Portland, Oregon. We’re proud to offer a Price Match Guarantee and a streamlined ordering experience from people who truly care.
We’re trusted by over 75,000 customers, many of whom return time and again. Want proof? Just check out our 25,000+ customer reviews—real feedback from people who love how we do business.
Prefer to talk to a real person? Our Book Specialists are here Monday–Friday, 8 a.m. to 5 p.m. PST and ready to help with your bulk order of Muscles (Our Muscular System).