John Robertson is a scientist, writer, investor, teacher, and all-around nice guy. He specializes in explaining complex topics – scientific or financial – for regular people. He has a PhD from the University of Western Ontario in Medical Biophysics, and spends his days as a science writer & editor for the Techna Institute in Toronto.

Personal finance and investing have long been personal passions for John. He has been an active part of the Canadian personal finance community for over 7 years, blogging at Blessed by the Potato, creating spreadsheets and how-to guides amongst other commentary, analyses, and plain silly interludes. In 2011 he started an investor "technical support" service to help investors move away from relying on commissioned sales staff to planning and investing on their own. Those experiences helped identify the common issues and underlying need for the material that would become The Value of Simple, and provided a venue to test and refine the explanations and tools that form the book.