Monographs and brochures
Register of International Treaties and other Agreements in the Field of the Environment (UNEP, 2005) 
Selected Texts of legal instruments in international Environmentai Law (UNEP, 2005)
Regulatory and procedural guidelines and reference information
Glossary of Terms for Negotiators of Multilateral Environmental Agreements (UNEP, 2007)
Textbooks and tutorials
Training Manual on International Environmental Law (UNEP, 2006)