Want to learn what is Blockchain and Cryptocurrencies? How does it work? How can it applied in different fields? If you ever asked yourself these questions, then this introductory course is for you! With "Blockchain for absolute beginners" tutorial, you will learn the concepts behind blockchain, get to understand this transformative technology, understand the theory behind smart contracts and why it is so important for our future. This course provides a fast way to catch up with the essentials of this quickly evolving technologies. The idea of blockchain technology was first introduced in 1991 by researchers Stuart Haber and W. Scott Stornetta. In their white paper “How to Time-Stamp a Digital Document,” Haber and Stornetta explain the use of a continuous chain of timestamps to record information in a secure way.1 However, it wasn’t until the creation of bitcoin in 1998 that the technology was put into play. Bitcoin was created to be a decentralized form of money, rather than money that was government controlled and created (referred to as fiat money).A blockchain is a distributed software network that functions both as a digital ledger and a mechanism enabling the secure transfer of assets without an intermediary. Just as the internet is a technology that facilitates the digital flow of information, blockchain is a technology that facilitates the digital exchange of units of value. Anything from currencies to land titles to votes can be tokenized, stored, and exchanged on a blockchain network.