Marsh, Joel (Nombre personal)

UX for beginners, 2016: t.p. (Joel Marsh) back cover (He is a professional designer)

O'Reilly website, viewed 21 March 2017: authors page (He is a Canadian, living in Sweden)

Linkedin, viewed 21 March 2017 (Joel Marsh, lives in Stockholm. He is the Vice President of Marketing at UX)