Jonathan Corbet, a founder of LWN.net (Linux Weekly News), is also the lead author of the book Linux Device Drivers, third edition, published by O'Reilly. He is an active kernel developer who consults with companies on kernel development and community relations. Jonathan got his first look at the BSD Unix source code back in 1981, when an instructor at the University of Colorado let him "fix" the paging algorithm. Ever since, he has dug around inside every system he could get his hands on, working on drivers for VAX, Sun, Ardent, and x86 systems on the way. He got his first Linux system in 1993 and has never looked back.