Four-hour workweek by Tim Ferris is one book that had a tremendous impact on me. Specifically on how I started rethinking certain things and how I changed my approach to Getting Things Done. So much so that it was the first and until recently the only book I have reread.
This is also one book I had gifted to people in my circle.
Two segments stand out as top of mind recall
Check emails only twice a week: This idea that you should only be checking was so radical given the times we live in. The best part is that the author gives you an exact email autoresponder script for you to copy-paste.
Be that kid: There was a segment that said “Be that kid”. Tremendously impactful and standout section for me. Turned things on their head for me.