Cryptocurrencies

Horrible book that reads like a bunch of random ramblings on the topic. It's beyond superficial, needs a lot of editing work and some degree of cohesion (e.g. the chapters could have had some consistent structure). It's basically a listing of a few popular cryptocurrencies, and little else.

It might be free, but your time isn't so do yourselves a favour and find a better into to cryptocurrencies.