Is there any sense in these books? If you better understand crypto? Have you started to trade better?
It is very strange to ask this question. For sure, books on Bitcoin, written by those people, who have been dealing with cryptocurrencies for years, can be helpful. You do not need to buy them in the stores - just read the stuff online or download them if you use torrents. Audiobooks on cryptocurrencies are available on YouTube, and there are some podcasts devoted to this crypto.