Jim Butcher's the Dresden files

"Jim Butcher is a martial arts enthusiast with fifteen years of experience in various styles including Ryukyu Kempo, Tae Kwon Do, Gojo Shorei Ryu, and a sprinkling of Kung Fu. He is a skilled rider and has worked as a summer camp horse wrangler and performed in front of large audiences in both drill riding and stunt riding exhibitions. Jim enjoys fencing, singing, bad science fiction movies and live-action gaming. He lives in Missouri with his wife, son, and a vicious guard dog. Jim goes by the moniker Longshot in a number of online locales. He came by this name in the early 1990′s when he decided he would become a published author. Usually only 3 in 1000 who make such an attempt actually manage to become published; of those, only 1 in 10 make enough money to call it a living. The sale of a second series was the breakthrough that let him beat the long odds against attaining a career as a novelist. All the same, he refuses to change his nickname." [Jim-Butcher.com]