[Solmu]

hi is this book (how to make a tshirt for profit or fun) only about screen printing??? cuz i'm interested in heat printing thank you

While it's not just about screenprinting, it's not really worth it unless you need the information specifically to learn how to screenprint. It's a good how-to guide, but there's so much information available online these days that there's no need to buy every book you can find just for the few relevant tidbits of information.

The book Twinge mentions above (I Made That) is about heat press; but I think in general books like that have been made fairly obsolete by these forums (and to a certain extent the pace of technology).