Purchase Bitcoin: A Simple Definition
https://gregoryeggi776.wordpress.com/2019/09/20/6-books-about-how-to-invest-in-cryptocurrency-you-should-read/
Second, take some time to watch. Dont buy in, because there was a dip. There could be another. And buy in, because you fear tomorrow that it is going to explode. Watch it, get yourself informed, when you believe