e.g., Philosopher's stone -> sorcerer's stone. Science-fiction and fantasy UK book covers were better too, which is another example of the same weird parochialism of the U.S. publishing industry as it was. My probably unpopular opinion is that it's a reflection of a more general, largely un-self-aware New York City parochialism, which was where most of the big publishing firms were based, at least until the last deca…
Same with video games back in the day. The Japanese versions had much cooler box art than the Western ones. But they were often abandoned because they used a style that wasn't as popular in the West.