David France-migration

For Russian coins the Krause and Mishler catalogues are as good as any for people who don't speak Russian. However, they're no good for Russian hammered coins, which were produced up to 1718.

The best introduction for those early coins is The Russian Monetary System by I.G. Spassky (1967). Another reliable publication which is still useful, despite being initially published in 1837, is Chaudoir's Apercu des Monnaies Russes (in French), reprinted in 1964. For those who want to brave Russian there is a wide variety of publications on early coins, but many (if not most) are rare. In recent years Grishin and Kleshchinov have published three die-linkage catalogues for the coinage of 1533-1645 and 1682-1718, which cover most of the common "wire money" which you see on eBay and elsewhere.

And a scattering of some other suggestions:

England - Seaby's Coins of England, printed annually

France - Duplessy (Les Monnaies Francaises Royales)

Germany - Krause

Spain - Calico (Numismatica Espanola)

Islamic - Steve Album for a concise survey, but Michael Mitchiner's enormous series of publications fill a lot of difficult gaps (and is illustrated); Walker's books are too expensive

India - Pridmore's four-volume series, Mitchiner, Tye (jitals) and others

Early Europe - Grierson's Medieval European Coinage

DF