Social Economic Theory and Frank Zappa
To really enhance your understanding of Frank's music, and my interpretation of his continuing growth as an artist (which is a recent undertaking for me because I didn't really collect his records or see his movies), you'd have to read a book we shared like a lending library when I was young (This was my book, I will point out, and it cost me maybe 75 cents):
Thorstein Veblen, The Theory of the Leisure Class
When young students read this book for the first time, the first response is usually the correct one: Hey, he's making fun of us.