This book constitutes the refereed proceedings of the 26th International
Symposium on Algorithms and Computation, ISAAC 2015, held in Nagoya, Japan, in
December 2015.

The 65 revised full papers presented together with 3 invited talks were carefully
reviewed and selected from 180 submissions for inclusion in the book. The focus
of the volume is on the following topics: computational geometry; data
structures; combinatorial optimization and approximation algorithms; randomized
algorithms; graph algorithms and FPT; computational complexity; graph drawing
and planar graphs; online and streaming algorithms; and string and DNA
algorithms.