This book contains revised selected papers from the 18th International Conference on Membrane
Computing CMC 2017 held in Bradford UK in July 2017. The 18 full papers presented in this
volume were carefully reviewed and selected from 29 submissions. They deal with membrane
computing (P systems theory) an area of computer science aiming to abstract computing ideas
and models from the structure and the functioning of living cells as well as from the way the
cells are organized in tissues or higher order structures. The volume also contains 2 invited
talks.