Jonathan Boccara is the author of the Leanpub book The Legacy Code Programmer's Toolbox: Practical skills for software professionals working with legacy code. In this interview, Leanpub co-founder Len Epp talks with Jonathan about his background, the gruelling examination process for getting into the French Grandes écoles, how to make presentations with great visualizations, the psychological and practical challenges of dealing with legacy code in software, his book, and at the end, they talk a little bit about his experience as a self-published author.This interview was recorded on February 12, 2019.The full audio for the interview is here. You can subscribe to the Frontmatter podcast in iTunes or add the podcast URL directly.This interview has been edited for conciseness and clarity.