This year, we received a record high of about 180 submissions to ICWL 2007. From these, a total of 55 full papers plus one keynote paper were accepted for this LNCS proceedings volume, representing an acceptance rate of about 30%. The authors of these accepted papers were of a remarkable international diversity. We would like to thank all the reviewers for spending their precious time reviewing the papers and for providing valuable comments that aided significantly in the paper selection process. Authors of the best papers presented at this conference will be invited to submit extended...