Man, I’ve been obsessed with 'Naruto' since I was a kid, and Itachi’s story always hit me right in the feels. There isn’t a full-length novel just about him, but he’s central to 'Naruto Shippuden: Itachi’s Story'—a two-part light novel series. The first, 'Daylight,' covers his early years in the Uchiha clan, while the second, 'Midnight,' dives into his time as an Akatsuki member. Both books flesh out his tragic backstory, the massacre, and his undercover mission. Kishimoto didn’t write them, but they’re canon and add so much depth to his character. I cried reading how he struggled with loyalty and love for Sasuke. If you want more Itachi, these are essential—plus, the manga adaptation has gorgeous art.
Funny thing is, the novels also explore Shisui’s friendship with Itachi, which the anime barely touched. It’s heartbreaking seeing how much Itachi sacrificed, and the writing really nails his stoic yet conflicted voice. Pair these with the 'Naruto: Ultimate Ninja Storm' games for his fight scenes, and you’ve got the full tragic hero experience.