Ibn Katheer, At-Tabari, As-Syooti and Other Historians. The four Rightly guided Caliphs (Khaliph's) Abu Bakr As-Sideeq, Umar ibn Al-Khattaab, Uthmaan Ibn 'Affaan and Ali Ibn Abi Taalib. The Biography of Umar Ibn Abdel-Azeez who is regarded as one of the Rightly Guided Chaliphs is also included in this book.
Author: Imam Ibn Kathir
A most rewarding and fulfilling part of a Muslim's worship are those blessed moments that he spends praying in the depth of the night, privately addressing his Great Lord, sincerely glorifying Him, humbly imploring Him - beseeching His forgiveness and asking Him for favors. The voluntary "night prayer", or qiyaam, is indispensable for a person's moral, spiritual, and physical welfare. Yet, it is greatly misunderstood and largely neglected by most Muslims
Author: Muhammad Naasiruddeen al-Albaanee
Translators: Abu Maryam Ismaeel Alarcon
Many deeds through which a Muslim can earn great rewards
Publisher: Daar Al-Watan
Source: http://www.islamhouse.com/p/1319
By Shaykhul-Islaam Ibn Taymiyyah. Actions are distinguished, one from the other, with respect to their excellence in the Sight of Allaah in accordance with the condition of the heart, not by their number or form, but rather due to the strength of the caller, his truthfulness, his sincerity and the extent to which he prefer Allaah over himself…
Author: Sheikh-ul-Islam ibn Taymiyyah
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)
A compilation of five works dealing with fasting, Taraaweeh, I'tikaaf, Zakaat-ul-Fitr, and Eid.
Author: Muhammad Salih Al-Munajjid
Publisher: Islamic Propagation Office in Rabwah
Source: http://www.islamhouse.com/p/1351