The paper is chock full of great ASN info- what it is, what it's used for, areas of concern, scorecarding, etc. Check out the whitepaper here.
All About the ASN
I located an excellent source of information about the ASN. The whitepaper "Facilitating Supply Chain Visibility & Accuracy- An Analysis of ASN Benchmarks and Best Practices" was produced by Auburn University and was sponsored by VCF and the Compliance Network.
