This volume of the Texts in Algorithmics series is a collection of work by the participants and friends of London Stringology Days (LSD) and London Algorithmic Workshop (LAW) 2008, sponsored by the Department of Computer Science, King's College London. The form of this volume is that of a special issue, focussing on core computer science theory along with bringing that theory into the real world of computing via practical implementation. Contributed works research: structures in music and text, diffusion tensor imaging, compression, automata, stringology, nondeterminism, transposition...