This book of Islamic Economics: Principles and Systems is well written to suit a complete understanding upon the system of Shariah-based economic system. The book entails the philosophy and good conduct in economics and financial activities in human life; suitable for higher education institution students, facilitators and lecturers. The book describes on the dual concepts of Islamic and conventional economics with regards to development, consumption, production and income theories. Moreover, the book also defines on Islamic public finance and fiscal policy in the role of Zakat, Waqf and wealth-income redistribution functions. The book demonstrating well on Islamic monetary policy and international trade; how Shariah rules can be relate to a sustainable policy and system. Issues and challenges in contemporary Islamic economics also were discussed in this book to resemble current scenario and crisis in economic and financial development.