Quick link: Check out GenerateWP.com to automatically generate code for custom taxonomies, post types, the config file, and other useful bits of WordPress functionality. Very user-friendly interface with squeaky clean code output :)
Chris Coyier is a real-world web designer who has been reaching for WordPress to power client sites for many years.
He subscribes to the theory that not only is WordPress capable of powering any website it is almost always the right choice.
Jeff Starr is a professional developer, designer, author, and publisher with over 10 years of experience.
He works with WordPress on a daily basis to create high-quality sites with a focus on performance, security, and web standards.