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Stock up on summer PD reading with 25% off + free shipping on books through June 30.

Use code LASTDAY25 at checkout

Corwin online ordering services will be unavailable due to system maintenance on June 14th from 6:00pm -12 midnight PDT. If you need assistance, please contact order@corwin.com. Thank you for your patience and we apologise for the inconvenience.

Justin W. Patchin

Patchin, Justin

Justin W. Patchin is a professor of criminal justice at the University of Wisconsin–Eau Claire. For two decades he has been exploring the intersection of teens and technology, with particular focus on cyberbullying and sexting. He travels the world helping communities make online spaces safer and kinder.