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, Bart Bates, Brett McLaughlin, Gary Pollice, David West, Jennifer Greene, Andrew Stellman, Dan Pilone, Russ Miles, Lynn Beighley, Michael Morrison, Heather Lang, David Griffiths, Rebecca M. Riordan, Paul Barry, David Griffiths, Dawn Griffiths, Al Anderson, Ryan Benedetti, Michael G. Milton, Tracey Pilone, Lyza Danger Gardner, Jason Grigsby, Jay McGavren, Raju Gandhi, Mark Richards, and Neal Ford.