About the Author

Michael Hartl is a programmer, educator, and entrepreneur. Michael is coauthor of RailsSpace, a best-selling Rails tutorial book published in 2007, and was cofounder and lead developer of Insoshi, a popular social networking platform in Ruby on Rails. Previously, he taught theoretical and computational physics at the California Institute of Technology (Caltech) for six years, where he received the Lifetime Achievement Award for Excellence in Teaching in 2000. Michael is a graduate of Harvard College, has a Ph.D. in Physics from Caltech, and is an alumnus of the Y Combinator program.