Publishers are increasingly turning to events to add value for readers and increase revenue through sponsorship. An essential part of a B2B events success is the ability to accurately measure event attendance.

There are plenty of questions a marketer should ask before booking an ad. Some of the most obvious are questions like ‘who reads the magazine?’, ‘what features do you have?’ and of course ‘how much will it cost me to advertise?’. But there is one question even more important, and it should be the first question you ask; “Is your magazine circulation independently audited?”