Queen Elizabeth II: A Photographic Portrait just came out in the UK and I pre-ordered it, because that's what
The text part of the book, written by Philip Ziegler, is a pretty decent abridged biography of the Queen, suitable even for those who have limited interest in the subject (i.e. my husband). The text is super sympathetic to its subject to the point of trying to release Queen Elizabeth from any responsibility to the more questionable decisions from her past, such as pushing Princess Margaret to end her relationship with Peter Townsend. Still, it's interesting, well-written and serves as a good accompaniment to the truly wonderful photos.
Queen Elizabeth II: A Photographic Portrait by Philip Ziegler (£24.50 on amazon.co.uk) can be ordered online directly from the UK. even with shipping and exchange fees it's significantly cheaper than any other option.
Photo of (then) Princess Elizabeth and baby Prince Charles: Britanica.com