Marcin is a full-time crypto trader, entrepreneur and author of the bestseller 'Cryptocurrency: A Trader's Handbook'.  He is also the co-founder of Yellowblock, a marketing agency in the crypto space. Prior to crypto, Marcin worked as a product manager at a design agency.

Twitter: @cryptorangutang

Website: https://yellowblock.io/

My Twitter: @koroushak  

My Newsletter: https://koroushak.substack.com/