We analyze who Jack Dorsey is: software developer and businessman from the USA, especially popular for being one of the creators of Twitter and the founder of Block, one of the great American companies within traditional financial services, Fintech and crypto at the moment.

LThe figure of Jack Dorsey, is one of the most important in the business sector in the United States and one of the best known worldwide, especially after the success of Twitter. Dorsey, an avid programmer, has become a pillar in the construction of Web 2.0 and also the promoter of a series of business projects thanks to his venture capital and his interest in bringing technology to the world public.