One book I’d heavily recommend on meditation is Daniel Ingram’s amazing Mastering the Core Teachings of the Buddha. He really cuts through the fluff and gets to the core of how meditation taken to mastery changes how things are perceived. It’s an absolute tome but so worth it.
HIGHLY recommended. This summary got me started on a long journey - after 3 years of off and on meditation with apps, reading this article, and then MCTB made meditation one of the most exciting and important parts of my daily routine.