Coolidge by Amity Shlae is a reexamination of America’s 30th president. Calvin “Silent Cal” Coolidge has  hovered in the lower tier of presidential rankings.  Popular while in office, the subsequent  Great Depression impacted his standing.   Shlae takes up his cause and argues why his hands off approach to the 20s boom was a good thing.  Read on for more on Coolidge and what reviewers are saying.