This document presents results of the 2005-06 Association of Research Libraries (ARL) Law Library Statistics Questionnaire. Of 113 ARL university libraries, 75 responded to the survey. Results for each library are presented in the following data tables: (1) collections, including volumes in library, volumes added, monographs purchased, current serials, microform units, government documents, computer files, archives and manuscripts, cartographic materials, graphic materials, audio materials, and video and film; (2) expenditures, including monographs, current serials, other library materials, miscellaneous materials, total library materials, contract binding, salaries and wages for professional staff, salaries and wages for support staff, salaries and wages for student assistants, total salaries and wages, other operating expenditures, and total expenditures; (3) expenditures for electronic resources, including computer files, electronic serials, total e-materials and e-materials as percentage of library materials; and (4) personnel and public services, including professional staff, support staff, student assistants, service points and hours, library presentations to groups, participants in group presentations, reference transactions, initial circulation transactions, total circulation transactions, total items loaned, and total items borrowed. Rank Order tables are included for volumes in library, volumes added, current serials, total expenditures, total staff and total electronic materials are included. A copy of the ARL questionnaire and instructions, as well as footnotes to the statistics, are included. An appendix lists ARL member libraries as of June 1, 2007.