Students of Philo are fortunate to have at their disposal some excellent bibliographical resources. The following three contributions are of essential importance: / Goodhart , H. L. , and E. R. Goodenough . ' A General Bibliography of Philo Judaeus ', in E. R. Goodenough , The Politics of Philo Judaeus (New Haven 1938 ), pp. 125 -321, 329-48. Radice , R. , and D. T. Runia . Philo of Alexandria: An Annotated Bibliography 1937- 1986 ( Leiden 1992 ). Runia , D. T. Philo of Alexandria: An Annotated Bibliography 1987-1996 ( Leiden 2000 ). / Yearly bibliographies of Philo are published in The Studia Philonica Annual, which has been published every year since 1989. These bibliographies represent a continuation of the bibliographies that had been published in Studia Philonica 1-6 (1972-1980). The following classified bibliography is based on the structure of the present volume, and on the works cited in the notes, although it is not all-inclusive of them. The aim is rather to list those works that have Philo as their primary focus, and to supplement them with additional works that have broad relevance to the topics covered in the volume. Each entry appears only once, however, even if it might have been cited under more than one rubric. Needless to say, the bibliography is selective, and an attempt has been made to include some older studies as well as more recent contributions. Additional readings may be found by means of the reference tools just cited, as well as in some of the books and articles cited below under the heading 'Introductory and General Works'.