This comprehensive new Springer publication constitutes the thoroughly refereed post-conference proceedings of the 15th International Symposium on Graph Drawing, GD 2007, held in Sydney, Australia, in September of 2007. The 27 full papers and 9 short papers presented together with 2 invited talks, and a report on the symposium's graph drawing contest were carefully selected from 74 initial submissions. All of the current hot topics in graph drawing are addressed here.