Making health services research easy. This promise cannot be made by the authors of this guide to interventional health services research, a still young field of medical research. However, what does the reader find? The beginner will find a clearly understandable guide and a well-structured roadmap to take their first steps. The health services researcher will find solid, reflective knowledge and insights from extensive project work to develop new ideas. Additionally, methodological considerations for qualitative and quantitative methods, numerous examples for the design and implementation of their own projects, as well as potential pitfalls are highlighted. Good health services research is a worthwhile endeavor.