The reading order of Haruhi Suzumiya's novels can be as follows: 1 Start reading from the novel " The Melancholy of Haruhi Suzumiya ". This was the first novel in the series, which told the story of Haruhi Suzumiya and her friends in school and their daily lives. 2. Read the novels " The Sigh of Haruhi Suzumiya " and " The Astonishment of Haruhi Suzumiya ". These two novels were the follow-up to the first one, which told the story of Haruhi Suzumiya and her friends after high school. 3. Read the novels " The Loneliness of Haruhi Suzumiya " and " The Loneliness of Haruhi Suzumiya ". These two novels were the follow-up to the first and second novels, which told the story of Haruhi Suzumiya and her friends in high school and university. 4. Read the novels " Haruhi Suzumiya's Boredom " and " The Disappearance of Haruhi Suzumiya ". These two novels were the follow-up to the first and second novels, which told the story of Haruhi Suzumiya and her friends after they graduated. Reading the Haruhi Suzumiya series in this order would allow you to better understand the storyline and character.