These summaries are as accurate as possible. Discrepancies between the summaries and source material may occur. Personal comments and opinions have been [bracketed] for clarity (except in places where it is clear that an opinion is being expressed, such as the “Worth Reading” paragraphs). For more information on the topics discussed here, please check out the original source materials. The books, podcasts, websites, newsletters and articles summarized and referenced are almost without exception worth your time. I am grateful to all of the original creators and acknowledge their copyright.