Links

Sites

• ASN.1 Information Site : the reference site about ASN.1. 
• ASN1 Consortium : the purpose of this site is to promote the use of ASN.1. 
• ITU-T ASN.1 Project : the ASN.1 Project of ITU. 
• ITU-T module database : the ITU database of standards ASN.1 modules (a very useful link to find up to date ASN.1 modules for standards!).

Tutorial

Here is a tutorial on ASN.1.

Books

	ASN.1 - Communication between heterogeneous systems by Olivier Dubuisson
	ASN.1 Complete by John Larmouth