The book contains an edition of the piyyut
corpus of the 11th Century Italian payyetan R. Yehiel bar
Avraham, known especially by virtue of his son, R. Natan, author of the Arukh.
Among his piyyutim we find many selihot, but also piyyutim
belonging to the qerova and yotzer types. The piyyutim are
accompanied by an apparatus of variant readings, a commentary, and a scientific
introduction, in which R. Yehiel’s corpus is illuminated from different
perspectives, with special stress on characteristic collocations and
expressions peculiar to him.