NEW YORK (CNN/Money) - The fifth book in the wildly popular Harry Potter children's series is due in stores June 21, its publishers announced Wednesday.

"Harry Potter and the Order of the Phoenix" will be published in the United States by Scholastic Corp. (SCHL: Research, Estimates) and in Britain, Canada and Australia by Bloomsbury Publishing PLC.

The next installment of the Harry Potter children's series is to hit the store shelves this summer. CNNfn's Jen Rogers takes a closer look at the big business of Harry Potter. Play video (QuickTime, Real or Windows Media)

All of the first four books in the series about the education of a young sorcerer still are on best-seller lists, even though the first came out in September 1998. The series has sold a total of about 80 million hardback and paperback copies in the United States and 192 million worldwide, according to Scholastic. They have been published in 55 languages. The first-day sales of the books have become major events, with stores opening at midnight to deal with the crush of young fans.

The first two books have been made into top-grossing movies by Warner Bros., a unit of AOL Time Warner Inc. (AOL: Research, Estimates), which also has film rights to the other two books that have been published and options on "Order of the Phoenix" and others planned in the series. The first Harry Potter movie, "Harry Potter and the Sorcerer's Stone," took in $968 million in worldwide box office receipts, making second only to "Titantic."

The second film, "Harry Potter and the Chamber of Secrets," came out last fall and still is in theaters. It already has earned $772 million worldwide, putting it in ninth place. CNN/Money also is a unit of AOL Time Warner.

"The Order of the Phoenix", at 38 chapters and about 255,000 words, is about one-third longer than the most recent book, the 752-page "Harry Potter and the Goblet of Fire."