This book is a compilation of the most important parts of European private law. The authors contemplate and explain lability of the seller in case of non-conformity of the product and in case of a defective product. In addition, the book focuses on unfair contract terms, off-premises contracts and online and e-commerce. A special chapter of selected topics gives an overview of certain and specially selected important topics such as data protection, protection of discrimination, family law relations, and international private law relations.