Learning is an investment. And like any investment, it’s crucial to measure outcomes. But because learning is often intangible and individual, measurement is complicated. It’s not like working out how much money you saved by swapping the office over to energy-saving lightbulbs—there are multiple, intertwined factors to consider. The Popular Learning Evaluation Models Infographic from Reed Learning offers a quick guide to some of the most popular methods for evaluating the impact of learning.