As an introductory guide if you are thinking of Northern Lights trip, this works really well for the price. Whilst, unsurprisingly, there is not the detail of of other guides, it DOES give plenty of web links if you want to know more about a particular topic e.g trips, hotels etc (hence the title of my review). This method also ensures it doesn't date quickly, assuming the websites are up to date.
Where it excels is in the photographic advice: practical and easy to use "in the field". We have our trip already booked and needed something on the Kindle for exactly this purpose: this will do the job perfectly. Hard to fault for the price.