The science of hadith is one of the most honourable and important sciences as we know through it the truthfulness of what was narrated to messenger of Allah peace be upon him whether it is authentic or weak.It's importance and honorability are due the honorability and importance of it's target which is the sunnah of the messenger peace be upon him , the second source of the islamic legislation, the words of who doesn't pronounce any word out of prejudice, it is nothing except a revelation revealed. And from the most collective and summarized written texts of this field is The Text Of Nukabat Al Fakar In Mostalah Ahal Al Athar (the top of thinking in the classification of hadith) by the Hafiz Ahmed Ibn Ali Ibn Hajar Al Askalany Al Shafi may the mercy of Allah be upon him.And this is the reading of the text.
Author: Ibn Hajar Al-Asqalani
A nice discussion of some important points needed by those callling to Islam
Source: http://www.islamhouse.com/p/1243
The Importance of the issue of ijtihad, who has the right to make it, and caution of speaking about the religion without knowledge
Author: Salman Bin Fahad al-Awdah
Publisher: http://www.islamtoday.net - Islam Today Website
Source: http://www.islamhouse.com/p/1403
An important book shows the corrupt belief of Shi’ites. The author said in the introduction, “I wrote this book for a number of reasons including: (1) The increased efforts of the Shi’ites to spread their ideology in the Muslim world. (2) The danger of this deviant sect poses on Islam. (3) The ignorance of many Muslims about the danger of this deviant sect. (4) The corrupt Aqeedah (belief system) of the Shi’ites, which includes polytheism, defamation of the Quran and defamation of the Companions of the Prophet, may Allah be pleased with them all. (5) Their extreme beliefs in relation to their imams."
Author: Abdullah ibn Muhammad As-Salafi
Translators: Abdur-Rahman Murad
Take your Belief from the Quran and Sunnah: a booklet containing important questions of religious beliefs, the writer replied it was seeded with evidence from the Quran and Sunnah; to reassure the reader to answer correctly; because the doctrine of unification (Tawheed) is the basis of His Excellency rights in this world and the Hereafter.
Author: Muhammad Jameel Zeeno
Publisher: http://www.saaid.net - Saaid Al Fawaed Website
This is the English book "Ibn Taymiyyah Expounds on Islam" - A book of various Fataawa on Islamic faith, life and society. Translated by Muhammad Abdul Haqq Ansari and printed by The Institute of Islamic and Arabic Sciences in America (IIASA).
Author: Sheikh-ul-Islam ibn Taymiyyah
Translators: Mohammed Abdul Haqq Al-Ansari