This volume looks, amongst other things, at contract conclusion in electronic legal relations, freedom of contract and contract obligation plus the regulations concerning terms and limitations (§§158-163). The in-depth portrayal of particular manifestations and forms such as for example the contingent right are to be particularly noted. Of great importance to legal practice is the up-to-date alphabetical listing of individual cases classified in the commentary to § 134 according to Federal Law, Federal-State Law, European Law and International Law.