The psychology of money started in terms of financial planning. It helps explain a lot of bad behaviors people have around money, but it gives us very little sort of tools to do anything about it. The big issue with these biases is people aren't aware that they're exhibiting them.
Dr. Charles and Dr. Brad talk about the usefulness (and lack thereof) of behavioral finance as it relates to financial planning practice. They then dive into several of the biases and heuristics that they see as most relevant to a practitioner and how each can be applied in practice.