I am very disappointed with this as a Kindle edition. It is basically not useable. The "Target List" of doubles is not indexed, so you can neither go to a specific constellation or find a particular star. The information is spread across the page without headings, and it is not possible to access all the information for each star on a single page anyway- it simply disappears to the right, and you cannot see it...
The star charts are badly reproduced, and while you can, with difficulty, zoom in on them, they are fuzzy and not really useable.
It seems to stress the Kindle operating system too: it causes it to lock up, or works very slowly when you try to move to the next page.
This is a total waste of money in the Kindle format. I would give it zero stars if I had the option!
It is slightly better when it is viewed on a computer, rather than the Kindle, but it is still difficult to find anything as it is not properly indexed.
I would strongly recommend against buying it in anything other than a printed edition.
The Cambridge Double Star Atlas is back! It is the first and only atlas of physical double stars that can be viewed with amateur astronomical instruments. Completely rewritten, this new edition explains the latest research into double stars, and looks at the equipment, techniques and opportunities that will enable you to discover, observe and measure them. The target list has been completely revised and extended to 2500 binary or multiple systems. Each system is described with the most recent and accurate data from the authoritative Washington Double Star Catalog, including the HD and SAO numbers that are most useful in our digital age. Hundreds of remarks explain the attributes of local, rapidly changing, often measured or known orbital systems. The color atlas charts by Wil Tirion have been updated to help you easily find and identify the target systems, as well as other deep-sky objects. This is an essential reference for double star observers.