Recently, I just begin to read O'Meare's Deep-Sky Companions The Messier Objects.
In Chapter 1 and 2, the author said that there was a general sky map in the back of the book to refer to before you use the finder chart when you find the faint objects.
Although it is not necessary for me, but I don't find any sky map in my book, a new one with a plastic package.
Does anyone have the similar issue?