New ask Hacker News story: How to learn more about cryptocurrencies?

How to learn more about cryptocurrencies?
2 by AlexanderTheGr8 | 1 comments on Hacker News.
I am a CS student and want to learn more about the details of cryptocurrencies, in the hope of contributing to the open-src crypto community in the future. Due to Google's crappy results, I cannot find anything. So can anyone involved in development of crypto please recommend good books that explain the fundamental details behind cryptocurrencies (PoW, PoS, etc.)?