Harry Potter and the Order of the Phoenix is the fifth in the Harry Potter series written by J. K. Rowling, and was published on 21 June 2003 by Bloomsbury in the United Kingdom, Scholastic in the United States, and Raincoast in Canada. Five million copies were sold in the first 24 hours after release.
The novel features Harry Potter’s struggles through his fifth year at Hogwarts School of Witchcraft and Wizardry, including the surreptitious return of Harry’s nemesis Lord Voldemort, O.W.L. exams, and an obstructiveMinistry of Magic.
It’s got 38 chapters and clicking on the diagram will give you a closer look.