Measurement suppliers are still providing ad values and clients are using them, check out our guide to using and applying the AVE formula. Advertising Value Equivalents (or AVEs) has been a hot topic in PR measurement lately (read our summary). While many are angry with Meltwater for raising the topic, it does seem that we might be missing the point – PR professionals are obviously still using AVEs to prove the value of their work. In 2010, I was one of the 150 delegates agreeing the Barcelona Principles and believe that they provide the best possible framework for measuring the value that PR brings to an organisation. The guide will help PRs understand the underlyng elements of the AVE formula, and catch any issues.