Despite the focus by the popular media on the revival of Jewish instrumental klezmer music during the past decades, surprisingly little of a scholarly nature has been written until recently about either the klezmer tradition or its revival. Since 1999 a relatively large number of new book publications of both a scholarly and a popular nature have appeared. Besides the four volumes under review here, they include books by Rita Ottens and Joel Rubin, Moshe Beregovski, Seth Rogovoy, Mark Slobin, Zinovij Stoljar, and Yale Strom. It is hoped that the publication of these four works (and the other recent works not reviewed here) will open a broader discussion of the complex of issues surrounding klezmer and ḥasidic music and stimulate further research in these areas.