Emphasizing the "official," editor Sullivan has relied on primary sources like federal statutes and administrative agency regulations to compile an impressive list of definitions used in telecommunications law. These definitions are derived primarily from Title 47 of the U.S. Code and, in particular, Title 47 of the Code of Federal Regulations, though definitions from the 1996 Telecommunications Act are also included. Each definition offers a citation to the source document. Hardly flashy, this dictionary will be a useful tool for the telecommunications or legal professional.Patrick Petit, Catholic Univ. Law Lib., Washington, D.C.