Very voluminous but at the same time clear information about how to invest in bitcoin and in general almost everything about this cryptocurrency and its use. I was particularly interested by the part that talks about ATMs and how you can pay in the store by exchanging bitcoin for example. This is not the first time I have heard about crypto ATMs. The first time I heard it was when I saw a friend's map https://paydepot.com/pa-bitcoin-atm with the location of cryptocurrency ATMs. I didn't even know about their existence, but it turns out that there are already more than 5 thousand of them around the world.