This guide is written for field consultants, users and administrators of the HP OpenView Network Node Manager (NNM) software product. It was written for those who seek a shortcut to commonly used product info that is either missing or obfuscated in the product docs, and it covers practical implementation information that can't be found in any product manuals or the product man/ref pages. This guide was gleaned from OpenView users and from the author's thirteen years of compiled notes on the product. The 2nd edition covers all 7.x features through 7.53 and features expanded and improved content totaling 353 pages. Note: This edition has a brief description of NNM 8i features but should NOT be purchased to help with NNM 8i installations.