Dr Yannis Kalfoglou is a blockchain expert and practitioner. He started his blockchain journey as an autodidact using his 30 years’ experience in the technology space to quickly master the inner mechanics and appreciate the business opportunities. He has led and built blockchain systems with large Fortune 500 companies in the asset management and professional services space. He also strategized on blockchain applications for consumer electronics companies and architected smart contracts for an oil and gas supermajor. He is the author of the “Blockchain for business: a practical guide for the next frontier” book.