Which book(s) would you recommend? I quite liked: Validating Product Ideas https://rosenfeldmedia.com/books/lean-user-research/ https://rosenfeldmedia.com/bo

Which book(s) would you recommend? I quite liked: Validating Product Ideas https://rosenfeldmedia.com/books/lean-user-research/ https://rosenfeldmedia.com/books/lean-user-research/