where i can learn about blockchain network?

[escapefrom3dom]

where i can find and learn about blockchain technology, peer to peer network, and other related with cryptocurrency?

here is a step-by-step guide for beginners:
https://blockgeeks.com/guides/what-is-blockchain-technology/

and another useful info about cryptocurrency:
https://blockgeeks.com/guides/what-is-cryptocurrency/

[ululamri]

I do not understand what makes cryptocurrency valuable?