This book constitutes the strictly refereed post-conference proceedings of the 6th International Symposium on Graph Drawing, GD '98, held in Montreal, Canada in August 1998.The 23 revised full papers presented were carefully selected for inclusion in the book from a total of 57 submissions. Also included are nine system demonstrations and abstracts of 14 selected posters. The papers presented cover the whole range of graph drawing, ranging from theoretical aspects in graph theory to graph drawing systems design and evaluation, graph layout and diagram design.