Quick Review:
1. Look for ideas on different websites like teeview,RedBubble.com,Teefury.com,Bustedtees.com and more.
2. But more importantly checkout t-shirts on ebay/watchcount and see what type of tshirts are selling and how many people are looking at it.
3. Or hire someone from fiverr or odesk to do a market research on the latest trends and provide you with the ideas
4. Before you finalize your idea, make sure that your idea has enough audience on facebook.
5. Create a simple sales page with the title,description and other details about the t-shirt, this is to boost confidence among the buyers. Copy is included.
6. Then create a general fanpage on facebook and build an audience.
7. Now create a facebook ad campaign by two methods - Post per engagement and clicks to website. Test both of them and keep an eye on the CTR%, minimum spend $5. If campaign is not successful then stop.
8. Create 2-3 campaigns and test.
9. The author goes in great detail about targeting buyers and testing with different categories (chapter 4-traffic).
Overall looks like a decent wso with details about targeting and testing. The author stresses alot on TESTING,TESTING and TESTING....