Hi Chelsea,
For one school, we recently started using embedded flipbooks for most of our publications including a bi-yearly School Magazine and various brochures, in addition to a small print run. People who receive the print run we can only rely on anecdotal evidence and feedback, but the flipbook version is shared publicly and/or with prospective families. It allows us to track a range of metrics including total views, number of pages viewed, completion rates, downloads and average time spent reading the publication.