The AA's Road Atlas of Britain comes in an exhaustive and slightly bewildering range of sizes and scales. This one is the flagship model, being the most comprehensive, and expensive, but for anyone who travels any distance it is well worth it.
Map scale, at 3.16 miles to the inch, is not the largest you can buy, but it is sufficient for all but the raving enthusiast who wants to explore every unclassified road and byway. Clarity is top notch, with trunk and non-trunk A roads and B roads clearly distinguished, including dual carriageway sections. Motorways have their junctions numbered and, in a separate section, all the main ones have a graphic to show the approach signage and any access restrictions applicable at each junction.
Much publicity has been raised by the inclusion this year of symbols denoting the position of fixed radar speed cameras on main roads. All I would say, based on local knowledge, is don't rely on this information!
Where this atlas does score above some others is in the number (87) of town and city centre maps provided; it is handy to be able to see how to navigate the likes of Taunton and Colchester as well as Liverpool and Bristol. In addition there are plans of 12 airports and 9 ferry terminals, plus both ends of the Channel Tunnel and Calais ferry port. Large scale maps are also provided for outer London, Birmingham, Manchester and Newcastle, as well as a Central London street map at approx 0.3 miles to the inch.
Despite the book's thickness (320 pages), its A4 size keeps it manageable. The spiral binding also alleviates the frustration sometimes caused by your route or town coming right in the middle of the pagespread (but be slightly careful because the plastic spiralling is not over-durable).
Overall, then, this is probably the best road atlas around, both for the seasoned traveller and for trips and holidays (all places of interest being clearly shown as well).