In my opinion, this is a good tutorial if you want to learn how to perform interplanetary travel. The author devotes 48 pages to explaining not just what buttons to push, but more importantly why. Plenty of detail is provided, mixed with some good common sense concerning the range of settings and variables to use. This tutorial, when combined with 'flytandems' videos, and the desire to experiment and practice, gives the Orbiter pilot the ability to go beyond LEO and Lunar travel. Nicely done.