Book excerpt: Of all the many things we can look at in the night sky, the Moon is one of the richest in its ever-changing detail, as changes in light and shadow daily transform what you can see of every feature. Whether you use binoculars, a small telescope or a large one, you will find the Moon offers new horizons rich in exploration opportunities. Moonwalk with Your Eyes guides the reader quickly through lunar basics: how to determine the lunar day and what lunar terminology you might encounter here and in other books. From there, you'll be taken on a guided visual journey that encompasses what can be seen at any give time for all levels of observers.