James Clear did a nice job of compiling and summarizing knowledge on habits from various sources and then adding specific actionable steps. He has also created good tools and media as companions to the book which are available for free, see links in the summary.
This is a helpful concept I was introduced to for improving how to delegate tasks and responsibilities. These are levels of authority you give to others when delegating.
This handbook is designed to be the tool board members need to understand the roles and responsibilities of being on a board of directors. Especially the board of directors of a small nonprofit.
Think and Grow Rich has been recommended by several friends and I read it in 2019 together with a mastermind group. It is no surprise that it is so popular and frequently recommended. It contains so much information, it will take several re-readings to absorb the content and put it all into action.
Sacred Pathways is an insightful book, it opened my eyes to new ways of understanding my own and other people's relationships with God.
The most important message of the book according to the author, Guy Spier. Nothing matters as much as bringing the right people into your life. They will teach you everything you need to know.
The Four is an overview of Amazon, Apple, Facebook, and Google, briefly covering the past, present, and future of each. The most insightful parts for me were the details on the business philosophy of luxury brands such as Apple.