ENProf. Jasanoff’s new book constitutes a landmark in accentological thought. It contains the first analysis of Balto-Slavic accentual mobility, completely outside the realm of and in opposition to the “Moscow Accentological School,” that, unlike other comparable theories, pays special attention to the verb, not limiting itself to the noun. Given the unusual elaborateness and complexity of the theory offered in the work under review, it will probably be of use to reproduce here, briefly but thoroughly (with extensive citations), some of the ideas expressed in it. In order to avoid confusion, I will break this review into two parts, keeping the synopsis apart from my own comments, which are referred to in the text by numbers in square brackets.