Head First Series is a 38-book series with 38 released primary works first released in 2003 with contributions by Kathy Sierra, Bert Bates, Eric Freeman, Elisabeth Robson, Bryan Basham, Rich Gibson, Brett McLaughlin, Gary Pollice, David West, Bart Bates, Andrew Stellman, Jennifer Greene, Lynn Beighley, Michael Morrison, Dan Pilone, Russ Miles, Dawn Griffiths, Rebecca M. Riordan, Paul Barry, David Griffiths, Heather Lang, Al Anderson, Ryan Benedetti, Michael G. Milton, Lyza Danger Gardner, Jason Grigsby, Jay McGavren, Raju Gandhi, Mark Richards, and Neal Ford.