US publishers Scholastic said it's planning to print 6.8 million copies of Order of the Phoenix.
That means it shouldn't disappear off the shelves too quickly when it appears in June.
Sell-out
It's not surprising; JK Rowling's last book, Goblet of Fire, became the fastest-selling book in US history, selling 3 million copies in two days.
Scholastic had to print another three million straight away.
To make sure they don't get caught out, they're using several different printing plants.
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Order of the Phoenix: How will u get yours?
