The most detailed accounting I've come across of the economic realities of the record biz (including the myriad ways an artist can be screwed by his or her label) is the book "So You Wanna Be a Rock & Roll Star" by Jacob Slichter (drummer for Semisonic). It's a really fantastic read I recommend to anyone who wants to be a professional musician or just wants to understand the industry. If you want wild antics and groupies and what not, skip it. But man does it ever go into a lot of technical detail of how the recording industry sausage gets made.