I am a big fan of Readwise. It helps me master books. Readwise converts my handwritten notes to text I can review and iterate. The Readwise API hooks into Shortform and that opens doors of digital transformation for me. See my blog for more details https://www.insideview.ie/2022/09/three-readwise-discoveries-knowledgemanagement.html
Become a supporter of this podcast: https://www.spreaker.com/podcast/topgold-audio-clips--2663090/support.