I've went the bookfair english section and I think it's worth to go as they have the English Avenue which is a convenience way to shop most of the english bookstores in Hong kong in a centralized location, like bookazine, swindon, metrobooks........ And seeems this year the area would be increased 50% than before, should be fine.
And every year, there is a zone called Children’s Paradise for kids books, so, it is no problems to find adults books in English Avenue.
Have you vsited the bookfair website? I found they have exhibitors and book search function, very convenience, you can have a try:
Read More
Good luck~
Carmen