About the Reviewers

Francesco Canessa is a software developer experienced in Bitcoin and blockchain technologies. His preferred tools when working with Bitcoin are Bitcoin Core via its JSON API for its solidity and simplicity, and the Bitcore JavaScript library for making slim client-side wallet software. As he believes that Bitcoin and blockchain are important innovations of our times, he builds open source projects (for example, BitNFC—http://bitnfc.org) to research and show the true power of these new technologies, and find new ways to drive Bitcoin's adoption. He has been working as the main translator on the Italian edition of Mastering Bitcoin, O'Reilly Media, written by Andreas M. Antonopoulous. His favorite programming language is Ruby and his hobbies are creating 3D printers and IoT.

Jose Celano started with computers when he was 10 and was given a Commodore 64. Jose holds a bachelor's degree in technical engineering in computer systems from the University of Las Palmas de Gran Canaria. He set up an IT company in 2004 after he finished his studies (iQ ingenieros), where he worked for 10 years, mainly developing web applications. He has always been interested in Internet payment systems and web development.

In September 2013, he began to investigate Bitcoin. In February 2014, he become a freelancer and started working on Bitcoin projects. Recently, Jose has worked as a private PHP consultant for BlockCypher, a San Francisco start-up providing blockchain web services to enable developers to easily build reliable blockchain applications.