Questions from a reader

I received an email from a person who bought What You Need to Know to Be a Pro: The Start-Up Business Guide for Publishers and after reading it had a few questions. I'm posting his questions here because I think they may be helpful to others.

I'm curious as to how, for state tax reporting requirements, you note sales to non-profits such as libraries. Do you simply put $0 in your spread sheet for the tax part of the sale or do you also need additional backup materials from the library (or...