At the part "Theory" you get information about the different parts of german constitutional law subdivided like the Basic Law.
Constitutional law at a glance
Constitutional law and states, Basic Law, History
Basic Rights, Individual Basic Rights
The constitutional principles republic, democracy, federal state, welfare state, constitutional state.
The Federal organs of the legislation, executive and jurisdiction.
Bundestag, Bundesrat, Federal President, Federal Government, Federal Constitutional Court
The process of legislation of the Federal Republic.
Baden-Wuerttemberg, Europe, Finances, Media, State of emergency, Public Administration, International law