I purchased the ASC practice kit...the only item I used was the "manual" ...quite informative actually. But, me being me, I kept looking and ended up with the "West Systems" line of stuff. ACS carries the free "How-To" book on West Systems products. This book and material is also available at a number of marine supply dealers.

I found the West Systems material more informative than the other material. I also ended up giving the ACS practice kit away.
 
West Systems Website has almost all you need

I second what Noel said about West Systems. They have all manuals available online. Good stuff. I spent couple days reading them and when resin and hardener came, it was very easy to work with it.