It is divided into 372 paragraphs forming twelve sections, covering the laws, regulations, and ceremonies relating to prayers, Sabbath, blessings, and the Jewish holidays.
Appended to the work are several treatises and responsa on miscellaneous religious and legal matters, such as circumcision, mourning rites, tzitzit, shechita, inheritance, and interest.
He systematized his material skillfully, gave it a concise as well as popular form, and judiciously discriminated between conflicting opinions and decisions, giving preference to those that seemed to him true.
A third abridgment entitled Ma'aseh ha-Geonim (The Work of Old Authorities) circulated in manuscript and is extant in the Bodleian Library, Oxford.
Anaw was in correspondence with Avigdor Cohen, Meir of Rothenburg, and Abraham ben Joseph of Pesaro.
Very often he mentions his senior contemporary, Isaiah di Trani (the Elder), to whose Bible commentary Anaw wrote glosses in 1297.