Great book for elementary learners in econometrics. Introduces the basic concept of econometrics by intuitively describe the thinking process underlying the main idea of econometric models. Thoroughly covers basic cross-sectional methods, then provides a well-treated insight in time series part methods and finally a brief but enlightening preview in pool and panel methods. The main body leaves out tons of mathematical deductions to provide a clear and intuitive understanding of econometric concept, which you can find in the appendixes. You need only basic grasp of probability and (inferential) statistics to start this magnificent journey of econometrics. FYI, Woodridge kindly refers to a fair amount of further study materials in the text.