Naruto Databook 4 Direct

Regarding your query for it appears to be a misremembered or colloquial term for a specific section within this book. Based on the content of the 4th databook, you are likely referring to one of the following: 1. The Masashi Kishimoto & Eiichiro Oda Interview

If you meant the fourth databook for the original Naruto (not Shippuden ), that would be (2005) — but that covers pre-timeskip only. The commonly referenced “Databook 4” among fans is the 2014 Jin no Sho . naruto databook 4

Profiles for Sasuke and Itachi are expanded, detailing the "true feelings" behind their bond and Sasuke's ultimate goal of clan restoration. The Jutsu Encyclopedia Regarding your query for it appears to be

The databook is known for providing "deep" dives into late-series character development and complex techniques: The commonly referenced “Databook 4” among fans is

: Fans often search for "Naruto x Piece" or "Deep" insights because the two authors discuss their decade-long rivalry and deep mutual respect.