In the Law of Legal Transactions, as the natural continuation of the General Principles of Civil Law, the legal order and along with it the legal science follow the extreme abstraction in the formulation of legal rules.

The interpretation and application of these principles require knowledge of the first part of the General Principles and form the basis for understanding and applying civil law in general.

In this second edition, the material is systematically organized into four parts with individual chapters and a total of seventy-four paragraphs, which contribute to the clear structure of the work and are often enriched with examples or excerpts from judicial decisions, aiming for better understanding and correlation of concepts, as well as connecting theory with practice.

The aim of this work is to serve as a scientific aid both for students and for the mature legal professional. Such an aim necessitates maintaining a balance in the development of topics, a balance that permits students to grasp and internalize new concepts, while also satisfying the advanced lawyer's diverse inquiries.