How To Get Big Biceps Ebook. Excerpt: Big muscular arms are the true definition of strength and power and can really transform a person's appearance and confidence. Problem is that most folks when thinking about how to get big arms fast make the mistake of focusing solely on the biceps, and believe that biceps mean big arms. BIG mistake! Why? Well, first let me give you a little anatomy lesson...To get big impressive arms you should look to work on the 3 major muscle groups that make up the arms - the Biceps, the Triceps, and the Forearms. It is these 3 muscle groups combined and the balanced development of all three that help you to get big arms fast.