The publisher is planning a first run of two million for Lee's new book, Go Set a Watchman

Forget any rumored pretenders you may have seen.

PEOPLE has an exclusive look at Go Set a Watchman, the feverishly anticipated first book to come from novelist Harper Lee since her 1960 classic To Kill a Mockingbird.

Get push notifications with news, features and more.

Publisher HarperCollins, planning for a hit, will print two million copies for the book’s July 14 publication date, a spokeswoman tells PEOPLE.

HarperCollins president Michael Morrison says the book jacket was meant to evoke Mockingbird’s now-iconic look: “It draws on the style of the decade the book was written.”

But, he adds, with “so many wonderful parts” to Watchman’s new narrative on the beloved characters of Scout, Jem and Atticus Finch, “it was hard to pick just one iconic image to represent the book.”