The Brussels IIbis Regulation is the magna charta of cross-border divorce and cross-border lawsuits concerning parental responsibility in Europe. It has substantially changed the nature of lawyers\` advice to clients in such cases. This commentary:- is the first ever English language article-by-article commentary on this very important piece of European legislation,- combines in-depth analysis with a genuine and truly European perspective, authored by top experts from all over Europe, and- provides for necessary guidance, as the European Court of Justice will not be passing guiding judgments in the foreseeable future. This commentary will serve the need of an ever rising number of practitioners concerned with European divorce, custody, or child abduction cases, and it will certainly stir academic discussion all over Europe.