This video is the best way to explain how bitcoin and the blockchain work in 22 min. The video shows how bitcoin is transferred between two accounts and how the public account ledger is updated at all nodes. The video also describes the difference between the private key and the public key. You will also learn about how the blocks are lined up after each other to create the blockchain. There are much more things to learn from this video such as: how the network prevent fraud and double spending, how contributors are rewarded, how transactions are confirmed and much more. That is a must see for the bitcoin newbie!