Ibn Rajab al-Hanbali This is a treatise we have written concerning humility (Khushu') and the hearts meekness and breaking (inkisar) before the Lord. The basic meaning of Khushu', is the softness of the heart, its being gentle, still, submissive, broken, and yearning. When the heart is humble, so too is the hearing, seeing, heard, and face; indeed all the limbs and their actions are humbled, even speech. The source of the Khushu, that takes place in the heart is the gnosis of Allah's greatness, magnificence, and perfection.
Author: Ibn Rajab Al-Hanbali
The Tenets of Faith, Creed of Ahlu Alsunnah and Aljamah: This Book Present the Pillars of Eman in a very Simple way.
Author: Muhammad ibn Saleh al-Othaimeen
Translators: Mane' Bin Hammad Al-Juhani
Publisher: http://www.al-hidaayah.co.uk - Al-Hidaayah Publishing and Distribution Website - Books of the office of propagation in Ulayya, Sulaymaniyah and north of Riyadh
The permissible and prohibited types of waseelah
Author: Naasir Bin Abdulkarim al-Aql
Publisher: Daar Al-Watan
Source: http://www.islamhouse.com/p/1297
This book talks about the life story of Muhammad, may Allah exalt his mention, and his beautiful manners. It also brings to light statements for contemporary figures in Western society, who spoke favorably of Prophet Muhammad, may Allah exalt his mention.
Author: AbdulRahman Bin Abdulkarim Al-Sheha
Translators: Abdur-Rahman Murad
Publisher: Islamic Propagation Office in Rabwah
Source: http://www.islamhouse.com/p/1385
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 excellent book for non-Muslims explaining various aspects of Islam.
Author: Pete Seda
Publisher: Islamic Propagation Office in Rabwah
Source: http://www.islamhouse.com/p/1301