[All] IU's music review collection was published by a popular music critic

IU published a collection of music reviews.

They say they published an analysis of IU's musical world.

Vocalization, singing ability, and musicality are all there.

Since you analyzed it, there are many advantages

I can understand

This book is written by a popular music critic

Mr. Jo Seong-jin, the current president

Analyzing IU's musical world

This is a published collection of reviews.