The idea of building bigger arms is easy! Yes I said it easy. Lets face it, every bodybuilder wants big biceps and massive triceps and I am going to give you the best tip to building muscular arms. I could not give you better advice than this... Train you arms less. Yes I know this may be hard (impossible for some) to understand but giving less attention to bicep curls and tricep pulldowns and more concentration to deadlifts, bentover rows, and bench presses are the keys to getting massive arms. I know all too well that the pump after doing 10 sets of bicep exercises feels great but is that really going to get you 18 inch+ arms? Unfortunately I fell in to this trap when I began bodybuilding but thankfully I only wasted a short time and soon realised that this was not working. Think about it... if you could bench press 400lb, deadlift 600lb, and row 400lb there is no way you are going to have little 14 inch arms and flat biceps. This is not going to happen over night and only through continuous heavy lifting with the bigger compound movement are you going gain mass on your arms. Dont get me mistaken I myself still add in a little bit of direct arm work, 3 sets of curls after back workouts and 3 sets of a tricep exercise on chest day my arms really began to grow when I started concentrating on the bigger lifts. It is as simple as as that!