Philip Wolny 
Defeating Gangs in Your Neighborhood and Online [PDF ebook] 

This essential guide discusses the very real threat to young people by gangs in the United States and the perpetuation of those gangs due to poverty, disenfranchisement, and a sometimes too-harsh punitive system. The book details the disproportionate treatment of black and brown youth, the uptick in violent white gangs, and the need for dealing with gangs in a more measured way. It provides resources for how to deal with gangs wherever you find them, including avoiding them, keeping friends out of them, and finding resources to stop the violence.