Islam is a system of belief that has very deep penetration into every aspect of life, its effects are of such a great magnitude that Islam has been able to create a great civilization around its system of belief. This book provides just a glimpse of beauty of this belief system for Spanish speaking muslims. It is an excellent source for dawah.
Other Sources:
Sultan Omar Ali Saifuddien Mosque, Bandar Seri Begawan, Sultanate of Brunei
Surah Aal-e-Imran (Chapter 3) from Quran - Arabic English Translation