'Ilm al-Rijal : Ta'rifuhu wa Kutubuh

Here is an excellent scientific research that will give you almost everything you need to know to understand 'Ilm ar-Rijal, i.e. the science of the Hadith reporters. This science was instituted by the Ulema of Hadith in order to protect the Ummah from false Hadith, by endeavoring to know the biography and the degree of authenticity of each of the reporters present in the chains of narration of the Hadith.

This book develops very well the foundations and ramifications of this branch, as well as the books that were written in this field, which are very numerous.

A must for any student of the science of Hadith.