This is a comprehensive analysis of Usury from various authoritative and authentic sources of Islamic and non-Islamic publications. I have emphasized on theological aspect of the subject of Usury in this book.   Almost all Faith-based jurisprudence scholars agree upon the concept of the Usury, however the issue is unclear with many people living in the West about the nature of Usury. I have obtained accurate narration and information regarding the exact nature of Usury and detailed rendition of it from Islamic and non-Islamic sources.  Trading in Western World is essential for every Muslim living in the West. We are allowed to trade with non-Muslim Nations for our needs and we are permitted to do so in light of Islamic Law. However, we should be carefully considering the issue of Usury.