This article is from the Legal Research FAQ, by Mark Eckenwiler with numerous contributions by others.
The history and interpretation of the Constitution is, not
surprisingly, the subject of innumerable works. This FAQ cannot
begin to do justice to the available bibliography, and will not
attempt to do so.
For what it's worth, a widely available (and respected) overview
is Laurence Tribe's single-volume _American Constitutional Law (2d
ed.). Also useful, if less commonly available, is Rotunda and Nowak's
4-volume _Treatise on Constitutional Law: Substance and Procedure_ (2d
ed.). Both works provide extensive cross-reference to other secondary
sources, as well as discussions of hundreds of important Supreme Court
Finally, note that much of constitutional law relates to
standards for criminal proceedings. Accordingly, the sources
mentioned in section 4.2.4 below contain informative discussions on
numerous constitutional topics (such as the fifth amendment, the ex
post facto clause, the double jeopardy clause, etc.).