One type of data visualization I particularly enjoy is the technology radar. If you’re unfamiliar, it provides an overview of the languages, frameworks, tools, and other technologies currently in use at a company—a snapshot in time. What makes it fascinating is that it doesn’t present a simple black-and-white picture, such as merely listing the languages a company endorses or uses.

Instead, it features a plot divided into areas labeled “Adopt,” “Trial,” “Assess,” and “Hold.” Each area represents the level of adoption for a given technology within the company: