City of Bones vs Nine Dragons: Which Should You Read?

Both live on shelves: Harry Bosch, Bosch, Los angeles, Crimes against, Police, Investigation

City of Bones

City of Bones Michael Connelly · 2002 ★★★★☆ 4.5 396 pages · ≈ 7 h 20 m · Light Find on Amazon

Nine Dragons

Nine Dragons Michael Connelly · 2009 ★★★★☆ 4.4 377 pages · ≈ 6 h 59 m · Moderate Find on Amazon

The verdict

Ratings are close: 4.5 vs 4.4 — either is a safe pick by score.
City of Bones is the easier read (Light), Nine Dragons more demanding (Moderate).