"Calmer, Easier, Happier Parenting" by Noël Janis-Norton was the most helpful parenting book for me. Includes the main principle to replace punishment with descriptive praise and teaches lots of other methods to improve relationships with your children.

Have you already read these books?

Given a large codebase I was not familiar with, I wrote https://vlasovstudio.com/runtime-flow/ tool. It shows and records executed code in real-time just as you interact with an application. (Works only for .NET Windows programs.)

For C# and LINQ in Excel there is my ESharper add-in https://vlasovstudio.com/esharper/