Over the weekend, my eBook $13 "Zero to Billions: Anyone Can, 57 US Immigrant Self-made Billionaires: Strategic Industries and 14 Lessons" have been approved by Amzon and Kindle
https://www.amazon.com/Zero-Billions-Immigrant-Billionaires-Industries-ebook/dp/B01IYX5N38/ref=sr_1_1?ie=UTF8&qid=1469402872&sr=8-1&keywords=57+US+immigrant+self-made+billionaires#nav-subnav
What are the 
STRATEGIC INDUSTRIES?
These are the industries that make the US the No 1 Economy of the world.  They are the computer industry (software and hardware), the healthcare industry (Cancer drug, Plasma and other advanced healthcare),  Venture Capitalist.
Just take a look at the 
Top 6 US Immigrant Venture Capitalists.  They are all billionaires. 
In my opinion, these 6 strategic industry prophets in US.  They are also the richest and most the most influential venture capitalists in the US in the past 20+ years.  How these foreigners would come to US and shake up the venture capitalist industries is truly unthinkable. 
1. 
 Michael Moritiz (Jewish Immigrant from Wales),early investor in Google

Age 61 ,  Net Worth  $2.9B, Education:  MBA  Wharton U Penn
2. 
Douglas Leone  (Immigrant from Italy) , responsible for Whatsapp, 

Age 59 , Net Worth $2.6B , Education  MBA MIT Sloan
3. 
 Paul Graham  (Immigrant from England), responsible for discovering AirBNB, Dropbox and co-founder of Y-Combinator

Age 62, Net Worth $1.4B , Education PhD  Harvard University
4. 
Peter Thiel (Immigrant from Germany) founder of Paypal and early investor in FaceBook

Age 48 , Net Worth $2.6B  , Education  JD Stanford U
5.  
Khlosa, Vinod (Immigrant from India), co-founder of Sun Microcomputer

Age 61,  Net Worth  $1.52B, Education MBA Stanford 
6. 
 Shriram, Kavitark Ram (Immigrant from India), early investor in Google.

Age 59 ,  Net Worth 1.87B, Education  BS University of Madras