Is it true that I could spoil my baby by picking him up every time he cries? It just gets frustrating when he keeps crying.

Baby's only way to communicate before talking is crying. He might be having discomfort/feel hungry/need to change diaper/want to sleep. Here is a guide to decode baby's cries: http://www.whattoexpect.com/first-year/week-10/decoding-cries.aspx