Joel de Guzman is the main author and architect of Boost.Spirit, Boost.Fusion and Boost.Phoenix. He is a highly experienced software architect and engineer with over 20 years of professional experience, with specialization and expertise in generic C++ cross-platform libraries and frameworks. Joel is a consultant at Ciere Consulting, and has provided support and development services focused on the Boost libraries. His interests include Parser Generators, Scripting language interpreters and compilers, Domain Specific Embedded Languages, 2D graphics, GUI frameworks and Digital Signal Processing… and playing guitar!