The book 'Range' by David Epstein explores the difference between being a generalist and a specialist. It emphasizes the benefits of diversifying skills and avoiding excessive specialization. 'Jolt Effect' by Matt Dixon and another author is a sales book that focuses on de-risking opportunities and anticipating objections. It provides insights on how high performers in sales handle tough times. Lastly, the speaker recommends Richard Branson's autobiographies, particularly 'Losing My Virginity,' as inspiration for his entrepreneurial work.