This new research report from the National Institute of Justice (NIJ) and the Crime Mapping Research Center (CMRC) (reviewed in the August 10, 1999 Scout Report for Social Sciences) offers a detailed introduction to the science of crime mapping. Rather than a practical guide to specific software, the report "presents a broad approach and addresses the kinds of questions crime mapping can answer and how it can answer them." Users can view the report by chapter or in its entirety in .pdf format. The report also includes over 110 geographic information systems (GIS) maps, references, and an appendix of related online resources.