To immediately point it out again: There are no star charts in this version of the book!
Either you are an accomplished stargazer and do not need the charts (and I fear this book) or you will have to acquire some charts along with this book.
In any case, this book, especially on an e-reader on which one could easily load interactive star-maps, is somewhat of a curiosity and a reminder of a pre-digital age. Viewed at such it does quite well in my opinion, providing well-worded, mnemonic advice for stargazers and a good summary of stellar names and where they came from.