The version 2.1 update of the AASM Manual for the Scoring of Sleep and Associated Events will be released next month. The updates will include changes to the Visual Rules found in chapter IV. All online AASM Scoring Manual subscribers will receive an automatic update when the revision is released. Online subscribers also have the option of pre-ordering the printed version of the Version 2.1 manual. Log in to the AASM Resource Library to subscribe online to the AASM Scoring Manual.