Up votes for BEENHUSTLINGNINEFOUR for suggesting these books / e-books They provide great pointers and guidelines for all stages of creating a brand. Although somewhat outdated and in situations it doesn't apply to what everyone here 100% of the time but still worth investing time into reading.
Here are some links to "FREE" PDF's I managed to upload incase some of you dont know how to bit-torrent or aren't exactly up to pace with modern technology, Im sure you all are.
Thread's Not Dead
How to create a kick ass tshirt brand
EDIT: Virus free, your computer may ask but this is simply because the e-books provide internet links to websites and videos on youtube regarding vinyl printing and so on.
thanks for the shoutout bruh.
can't really add much more to the required reading pile, minus some good sites:http://mintees.com/
good site to find designers, and a good place to try and learn design. think there's a few tuts on shirt blanks and the like, but primarily a community for designers.http://www.t-shirtforums.com/
this one gets posted around a lot, but really deserves to be posted again.http://www.howtostartaclothingcompany.com/
pretty sure I mentioned this one a few pages back, but it's also worth mentioning again.http://howtostartaclothingbrand.com/ebook/
ebook I found written by the guy who used to run Fourward, a brand apparently popular within the electronic music/dubstep/rave/etc scene. deadmau5 wore some of his shit. been meaning to cop it, but been putting off putting funds into paypal. haven't been able to find it for free, either.