Head First Series is a 41-book series with 41 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, Jennifer Greene, Andrew Stellman, Dan Pilone, Russ Miles, Lynn Beighley, Michael Morrison, Paul Barry, David Griffiths, Rebecca M. Riordan, Dawn Griffiths, David Griffiths, Heather Lang, Al Anderson, Ryan Benedetti, Tracey Pilone, Michael G. Milton, Lyza Danger Gardner, Jason Grigsby, Jay McGavren, Raju Gandhi, Mark Richards, and Neal Ford.