Modern business administration vs The Challenger Sale: Which Should You Read?

Both live on shelves: Gestion, Industrial management, Management, Business

Modern business administration Robert C. Appleby · 1969 ★★★★☆ 3.9 506 pages · ≈ 9 h 22 m · Moderate Find on Amazon

The Challenger Sale

The Challenger Sale Matthew Dixon & Brent Adamson · 2011 ★★★★☆ 3.9 221 pages · ≈ 4 h 06 m · Moderate Find on Amazon

The verdict

Ratings are close: 3.9 vs 3.9 — either is a safe pick by score.
The Challenger Sale is the quicker read — about 4 hours vs 9 for Modern business administration.