These are the book covers that I have collected so far.

Harry Potter and the Philosopher's Stone UK

Harry Potter and the Sorceror's Stone Netherlands

Harry Potter and the Chamber of Secrets UK

Harry Potter and the Prisoner of Azkaban covers

Limited Edition

Adult

Adult

Germany

Denmark

Spain

France

France

Italy

Germany

Sweden

Japan

Italy

U.S.A.

Denmark

Netherlands

U.S.A. Braille

Book 1- I don't know if they're philosopher's stone or sorceror's stone

U.S.A.

Czech Republic

Finland- Not Czech Republic

Africa- Different from U.S.

Iceland

Spain

Korea- It IS dirfferent from the U.S.

Africa- It IS different from U.S. and Korea

Norway- Different from U.S., Korea, and Africa

Spain- Another Version