his book constitutes the refereed proceedings of the 18th International Conference on
Descriptional Complexity of Formal Systems DCFS 2016 held in Bucharest Romania in July
2016. The 13 full papers presented together with 4 invited talks were carefully reviewed and
selected from 21 submissions.Descriptional Complexity is a field in Computer Science that deals
with the size of all kind of objects that occur in computational models such as Turing
Machines finte automata grammars splicing systems and others. The topics of this conference
are related to all aspects of descriptional complexity.
