The 7th workshop on Graph Classes, Optimization, and Width Parameters (GROW 2015) was held in Aussois, in the french Alps, from October 11 to October 15, 2015.
GROW 2015 is the continuation of the series of the following biannual meetings : Barcelona (Spain) in November 15-17, 2001, Prague (Czech Republic) in October 17-19, 2005, Eugene (USA) in 2007, Bergen (Norway) in 2009, Daejeon (South Korea) in , 2011, Santorini Island (Greece) in 2013.
A special issue of Discrete Applied Mathematics (volume 248, 2018, edited by D.G. Corneil, S.I. Oum and C. Paul) is dedicated to the workshop.
