Indeed, Islamic Banks can be regarded as an alternative to conventional banks. While the latter operate under the system of interest, the former work on the basis of mutual wilingness (an taraddin minkum), whereby no one should inflicted with it. Given the islamic system, the high optimism seems due, because islamic banking does possess a few advantages and conceptual strengths. However, one should not turn a blind eye to the potential drawbacks inherent in the concept of Islamic banking, such as in matters pertaining to legal support, management, capitalization, actual practices, etcThis book has been an effort to complement the strengths and attend to some shortcomings existing in the concept. The author has put forward sound scientific arguments on the philosohies and practices of Islamic banking, based upon two perspectives, namely fiqh and finance theories.