Cheaper than many books, and just about small enough to take with you on a holiday when you might use the camera, but there are several fairly obvious problems:
In the section about about "How many megapixels", the pictures used to show larger images aren't very informative - the picture suitable for 5x7 prints is about 1.75x2.25, and the one that's apparently OK for 420mm x 594mm is 82mm x 91mm (units swap between inches and mm and you're left to do any conversion yourself). Obviously the full size pics would be too big for the book, but we could have at least a detail to represent the image quality at the size discussed, and/or a picture showing the relative sizes correctly.
In the Memory and Memory cards section, SDHC cards get barely a mention and there's some puzzling maths. We're told that a 16Mb card will hold about 50 standard quality shots and one high-quality shot. Then "A 32Mb card will hold around 10 high-quality shots and a 128Mb around 30." Why the number of shots on a card four times bigger than 32Mb is not "around 40", I have no idea. And it's all pretty irrelevant as a search for SD cards on Amazon failed to find anything smaller than 1Gb (eight times the size of the biggest card discussed in the book).
Zoom lens focal lengths: we're told that focal lengths are specified by comparison with the focal length of 35mm cameras, but this is followed up by "They are indicated on the camera lens in millimetres." The focal lengths shown on the cameras are usually NOT "35mm equivalent", and the book contains quite a few pictures of cameras which prove this point.
"Which computer" page: more outdated information: you're advised to buy a PC with a minimum of around "100 gigabytes (80 Gb)". Yes, it really does suggest that 80 and 100 are the same number! And this in a day and age when it's pretty much impossible to buy a new desktop PC with a hard drive smaller than 250Gb. Then we have "Another item to ensure you have in a PC is a 'fast' processor; the processor does all the computing for you. Intel is a well-known manufacturer that makes Pentium processors while another reputable manufacturer AMD makes Celeron processors." The unnecessary quotes around 'fast' are a classic sign of a writer who doesn't really know his subject, and sure enough AMD don't make Celeron processors - Intel do.
The general advice about taking photos all seems pretty sound, but on topics like composition there's not much that you couldn't lift wholesale from a book from the pre-digital era.
My single experience with the index was poor - on looking up "filters", you only get page numbers for the coverage of special effects filters in image editing software. If you want to find the (skimpy) coverage of the filters that go on the front of lenses, you must look under "lenses" in the index.
This is a fast-changing field and the information at the back of the book says "First published in 2005. This updated edition published in 2008". My guess is that the stale technical numbers are still there from 2005. If you claim that a book about fast-moving technical stuff has been updated, the job needs doing properly.
These may all seem picky little points, but each one does its bit to erode my confidence in the parts of the book where I need help.