This work (Roth Collection 635) was originally published by the printer Elijah Aboab in 1645. It was dedicated to “Senhores Parnassim deste Kados de Talmud Tora”, the chief officers of the congregation who were effectively Menasseh’s employers. It came with an approbation (a permission to print) by rabbis Saul Levi Mortera and David Pardo.
The book was intended to help the recently reconverted members of the community to observe laws which were new and in some cases strange to them. As a popular manual, it was written in the ‘common’ Portuguese.