"There's nothing quite like Harry Potter in publishing," Bookseller magazine children's book expert Caroline Horn told Reuters. The most anticipated of the bunch arrives July 16 with the sixth book in the Harry Potter series, "Harry Potter and the Half-Blood Prince." "Even if you're an adult, it doesn't change the fact that it's a really great story that people get hooked on." But here are a few things you can bank on: Harry is another year older, his life gets more complicated, Voldemort draws closer and the tale is a little darker. In some ways, Pottermania has calmed down. Potter paraphernalia, for instance, suffered disappointing sales in 2003, and retailers have decided not to make the same mistake again. "I love his work," she said. "I'm planning on setting up a tent outside the bookstore to get his book." Potter fans, of course, face a far darker prospect than the departure of a single character. The series itself must end -- Rowling expects to start working on the seventh Potter book at the end of the year. "I'm kind of afraid to read that book because I know that J.K. Rowling will have no pity for the readers about killing off characters we like," said Heyman. Yes, summer days are almost here again (by the marketing calendar, they began last month), and with that long-lasting light comes a longing for page turners, thick biographies and plain old good reads. This summer, there will be plenty of books that fit the bill. "It didn't seem to drone on and on," she said. "There was a lot of stuff in the fourth book that could have been cut out, and the fifth book was really long. In the sixth book, everything fit in."