if I wanted to learn more about Rav Kook, can you suggest some books/seforim to start with? Kol tuv
It's best to start with the translations of R. David Samson and Tzvi Fischman. In addition, a good way to get an overview is with Rav Ari Zeev Schwartz, 'The Spiritual Revolution of Rav Kook'. All the best!