Yes, every serious world coin collector/dealer should have a couple (1801 - 1900 & 1901 - now), they are a bit expensive, but as far as I know they are the only decent world coin guide in English. The postage is not cheap either, they are like double phone book size! You can sometimes get better prices, I got mine at less than the RRP from Amazon.de, but of course that wouldn't be possible in the UK. I can also get them from Token publishing with a 25% discount, but the postage really eats that up.