Following is a brief listing of general and specific treaty subject collections. Many more such collections can be found in Hoffman & Berring, International Legal Research in a Nutshell (West, 2008) Appendix B, Web Treaty Collections K85 .H65 2008
Admiralty
Treaties and related documents in the field of admiralty law can be found in a separate volume of the multi-volume treatise Benedict on Admiralty, KF 1104 .B434, which is also available electronically via Lexis.
Investment
Investment Promotion and Protection Treaties HG4538 .I78 1983
United States Investment Treaties: Policy and Practice KF1575 .V36 1991
Intellectual Property
International Treaties on Intellectual Property K1401.A35 I57 1997
International Encyclopaedia of Intellectual Property Treaties K1401.A35 I428 2004
Copyright Laws and Treaties of the World K1418 .Un3
World Patent Law and Practice: Patent Statutes, Regulations, and Treaties K1504.15 1974
WIPO Intellectual Property Laws and Treaties Database (WIPO Lex)
Environment
ECOLEX This indispensable "gateway to environmental law" includes environmental law treaties and IGO materials related to them ("treaty decisions").
Extradition
Extradition Laws & Treaties: United States K5445 .E97 compiled by I. Kavass and A. Sprudzs, is a loose-leaf set containing all operative extradition treaties between the United States and foreign countries.
Outer Space
United Nations Treaties and Principles on Outer Space: Text and Status of Treaties and Principles Governing the Activities of States in the Exploration and Use of Outer Space KZD1120 .U557 1997
Taxation
Tax Treaties KF 6306 .F43, a 3-volume Warren, Gorham, & Lamont publication
Annotated Topical Guide to U.S. Income Tax Treaties KF 6306 .M33 1988 by J. Ross Macdonald and last updated in 1993
Tax Havens of the World available on Lexis
U.S. Tax Treaties Reporter now available via VitalLaw (a subscription website accessible via the Library's home page under Popular Databases)