Simon is an independent software development consultant specialising in software architecture; specifically technical leadership, communication and lightweight, pragmatic approaches to software architecture. He is the author of two books about software architecture; Software Architecture for Developers (a developer-friendly guide to software architecture, technical leadership and the balance with agility) and The Art of Visualising Software Architecture (a guide to communicating software architecture with sketches, diagrams and models). I’m also the creator of the C4 software architecture model and Structurizr, a web-based tool to create software architecture diagrams.