Those Who Remember Allah Have Surpassed Others is a book by Darussalam Research Division. This book is of 32 pages and it discusses the Virtue of Remembering Allah and Supplication.
Other Sources:
Al-Qadir (The Able) – Allah’s / Gods’ Name
Al-Qahhar (The Subduer) – Allah’s Name
Dua from Quran and Hadith
Islamic etiquette