A smartphone application that provides access to digital Islamic books, and it will continue to update with new books in the future.
A glimmer of Amir al-Mu'minin Ali's (a.s.) Virtues in 110 Hadiths from Ahl al-Sunnah Books
This book "The Roots of Religion" is about Usool -e- Deen which are Tauheed, Adl, Nabuwat, Imamat & Qayamat.
Tableeghaate Imaani