HubSpot has released an ebook titled How to Deliver Data-Driven Web Design to Clients. The book teaches how to develop web design based on data.David Boroi says, “As a part of implementing continuous improvement cycles within an optimization program, agencies must leverage data to make informed decisions around website development efforts. This data is often acquired by research methods such as user testing, A/B and multivariate testing, session replays, optimization-focused analytics reports, usability reviews, or on-page surveys.During a testing period, agencies can present the results... [...]