Fiqh-us-Sunnah is As-Sayyid Sabiq's immensely popular work in Arabic, meticulously translated here into English by the learned translators and originally published by American Trust Publications. It is a work on the Rules and Regulations of various Ibadat rendered in very easy reading style and thus its popularity. Where necessary, it refers to the various differences in opinion regarding how to perform any particular act.
While the publishers mention their intent to publish "all 12 Volumes", only 5 were produced originally into English and no more have appeared in the last 12 years, so one can safely assume that the rest will not be available any time soon. Nonetheless, these 5 Volumes are self-sufficient in their own right and cover the five pillars of Islam.
Vol One: Purification & Prayer Vol Two: Supererogatory Prayer Vol Three: Fasting and Almstax Vol Four Funerals and Dhikr Vol Five: Hajj & Umrah