Michael Moorhouse works as a Bioinformatics Researcher for Erasmus MC in Rotterdam, The Netherlands. He holds a B.Sc. from UMIST and an M.Sc. from The University of Manchester. Michael recently completed a Ph.D. from The University of Birmingham in the UK. He has been involved in numerous bioinformatics courses throughout the UK and Netherlands. This is Michael”s first book. Paul Barry works as a Lecturer in Computing Science at The Institute of Technology, Carlow in Ireland. He holds a B.Sc. from The University of Ulster in Jordanstown, Northern Ireland and recently completed an M.Sc. from The Institute of Technology, Sligo in Ireland. He is the author of Programming the Network with Perl (Wiley, 2002).