The book Statutory Jewish Prayers is a collection of essays by Ezra Fleisher on the subject of prayer and synagogue rituals. The two volumes of this book include Fleishers fundamental essays about the essence and emergence of statutory prayer in Israel. This text is accompanied by ancient versions of Israelite prayer found in the Cairo Geniza Collection in Geneva. The book also includes descriptions of other rituals and customs exercised in Israelite synagogues such as Rosh Hodesh (new moon) customs and special ways to blow the shofar on the Sabath. Torah and Haftorah (additional reading from the prophets) reading are also referenced. The book ends with a detailed inspection of a few important Mahzorim.

David ha-Nasi, a scion of the house of the Babylonian Exilarchs who also travelled to the region of Palestine , was active at the beginning of the 11th century. Many of his piyyutim , particularly various types of Selihot , were found in the Cairo Genizah. The book contains a critical edition of all of these piyyutim, accompanied by an extensive commentary and an introduction that investigates the payyetan and his compositions. The piyyutim of David ha-Nasi are examined from the point of view of their place within the history of Hebrew piyyut throughout the generations, and also from that of their surprising relationship to groups of hasidim contemporary with the author who were influenced by Arab Sufi sects

This book contains a selection of piyyutim in the Land of Israel and the East, from their first appearance and until the eleventh century, including poems by Rabbi Eleazar ben Killir , Saadia Gaon, Yanai, and others.