The present volume is dedicated to aspects of algorithmic work inbioinformatics and computational biology with an emphasis on stringalgorithms that play a central role in the analysis of biologicalsequences. The papers included are a selection of articlescorresponding to talks given at one of two meetings sponsored by TheRoyal Society, the UK's national academy of science, under grantno.: JEB/KOREAN Networks/16715. The grant supported two workshopsorganised by researches from the Seoul National University (Korea)and King's College London (UK). The first workshop was held inSeoul, Korea, in July 2004 and the second meeting took place inLondon, UK, in February 2005 as part of the annual LondonStringology Days.