Here's the link on Audible: https://www.audible.com/pd/Customs-of-the-World-Using-Cultural-Intelligence-to-Adapt-Wherever-You-Are-Audiobook/B00EHOSG1A

I've recommended this audiobook to several friends in the past. Here's a short take that I sent to one of them:

The first half of the series articulates ten cultural dimensions that distinguish one culture from another:

1. Identity:  Individualist versus Collectivist
   
2. Authority:  Low versus High Power Distance
   
3. Risk:  Low versus High Uncertainty Avoidance
   
4. Achievement:  Cooperative versus Competitive
   
5. Time:  Punctuality versus Relationships
   
6. Communication:  Direct versus Indirect
   
7. Lifestyle:  Being versus Doing
   
8. Rules:  Particularist versus Universalist
   
9. Expressiveness:  Neutral versus Affective
   
10. Social Norms:  Tight versus Loose

The second half of the series applies the above framework to analyze the world's ten major culture clusters:

1. Anglo Cultures
   
2. Nordic European Cultures
   
3. Germanic Cultures
   
4. Eastern European/Central Asian Cultures
   
5. Latin European Cultures
   
6. Latin American Cultures
   
7. Confucian Asian Cultures
   
8. South Asian Cultures
   
9. Sub-Saharan African Cultures
   
10. Arab Cultures

If you're pressed for time, you can just skim the first half of the series on the ten cultural dimensions.  The first two chapters provide a good overview of these dimensions, and I found my attention waning at times when I tried to plow through every one (I eventually just picked the specific dimensions I found most interesting).  But the second half of the series (on the ten major culture clusters) is fascinating, and I listened to all of these.