This is the shelf where I keep my Harry Potter books (and my Ruth Chew books). I have a full set of American paperbacks and a full set of American hardcovers, plus I have Book 1 or Book 3 of the series in each of the following other languages:

Afrikaans
Bulgarian
Catalan, aka Valencian
Chinese (simplified)
Chinese (traditional)
Czech
Danish
Dutch
English (braille)
English (UK)
Estonian
French
Galician
German
Greek (ancient)
Greek (modern)
Hindi
Hungarian
Irish
Italian
Japanese
Khmer
Korean
Latin
Malay
Portuguese (continental)
Romanian
Russian
Serbian
Sinhalese
Slovene
Spanish, aka Castilian
Swedish
Thai
Turkish
Vietnamese
Welsh