Product review (4 stars): First 20 pages will convince you to read it full cover to cover
Seriously! We always get this career advice "you gotta know the right people", but no one else ever talked about the "necessity of strangers" in a successful professional life. Strangers are a necessity because of their differences and what they know that we don't know.

The author has described his work as Explore, Connect, Innovate, Grow...a simple 4 word approach each of which is self-explanatory in the context of professional growth. It is "Innovate" area where strangers can help you most by providing an objective opinion and being able to challenge you to think differently, and drive you out of your comfort zone.

Further, the author compares the small limits of exploring only within your network by comparing the magic number of "150 active connections of an averagely connected person" with the overall population of strangers i.e. 7 billion.

Almost all the chapters have some "key points to remember" which you may find redundant if you read management and leadership books, but overall the text does not get boring or mundane since there are small stories and anecdotes to draw comparisons and analogies.

However, the key lesson learned is that interaction with strangers will always help you to fill the knowledge gap which you or your own existing network may not be able to fill. So, one need to keep expanding his network and seek their help to innovate and grow.