The book shows how to use Planning by Design (PxD) for developing working models to any type of subject area. Section 1 describes the nature of planning in general, the formula of planning, the features that make it systematic, the essence of PxD, and developing and using the working model. Section 2 demonstrates personal application of creative planning to real life cases and practical working models on different subject areas. The book provides a general planning "master guide" that shows how to develop a working model of any definable subject matter. This objective will be accomplished by introducing the concepts, the process, and the methodology of PxD.