Most books about epidemiology are written for graduate students but this book is especially designed for undergraduates, who are taking an introductory course in epidemiology, and especially for those students who want to know more about epidemiology. But not because it is directed mainly to undergraduates and not to graduate students the course has less rigour and quality, it is because the concepts are introduced, and presented in an easier and simplified form, so, the study of epidemiology becomes less intimidating. While teaching epidemiology for several years, I have found that some students don't choose epidemiology as a career because the content seems too complicated, presenting the content in a practical manner, and simpler (although some epidemiological concepts are very complex)
should motivate students to learn about this subject matter.