This commentary takes its established place as the compact version among the large commentaries with its new edition. The concept of providing a handy volume with its own index for each of the four books of the HGB has proven effective: to offer practitioners of commercial law a reliable, practical, user-friendly, and scientifically grounded explanatory work. Clear subject divisions with introductory overviews, good readability, margin numbers, footnotes, and detailed literature references build on the advantages of the previous edition and aim to provide a proven working tool at the cutting edge for both practice and academia. The work has been thoroughly updated, incorporating legislation, case law, and literature since the release of the previous edition. The 3rd edition sets new accents by including commentary on partnership law.