A nice discussion of some important points needed by those callling to Islam
Source: http://www.islamhouse.com/p/1243
A useful booklet shows 1000 acts of Sunnah of the Prophet Muhammad (peace be upon him). It contains different situations i.e. waking up, going to the bathroom, performing ablutions, using sewak, wearing shoes, wearing clothes, going out and coming back home, going to the mosque, athan, iqama, praying at night and post-prayer sunnahs.
Author: Khaled Al Husainan - Khaled Al-Husainan
Publisher: http://www.rasoulallah.net - Website of Rasoulullah (peace be upon him)
This book is one of the most important Islamic books which gives right answers about Christianity.
Author: Sheikh-ul-Islam ibn Taymiyyah
Common mistakes which some pilgrims make such as their wrong concepts in 'Aqeedah (Islamic Belief) relating Hajj. In addition to their mistakes in Hajj rites as Tawaaf, Sa'i, Shaving or Trimming, 'Arafah, Spending Night in Mina and Muzdalifah, and Stoning the Jamaraat. Finally, it talks about their mistakes in visiting the Prophet's Masjid in Madinah.
Compassionate Among Themselves Mutual Compassion between Members of the Prophet’s Household and the Rest of the Companions: A brief book on the Prophet's Household and the Companions in the light of Glorious Quran and Sunnah.
The Virtues of Allah’s sacred month of Muharram and Fasting on Aashooraa.
Author: Muhammad Salih Al-Munajjid
Publisher: http://www.islamqa.com - Islam : Question & Answer Website
Source: http://www.islamhouse.com/p/1343