reply to post by Trublbrwing
There are many good, unbiased, biographies of U.S. Presidents that have been published over the years.
Truman by David G.McCullough is a terrific biography of President Harry Truman and is very objective and unbiased.
John Adams, also by David McCullough is excellent as well
Abraham Lincoln ( The Presidents Series) by George S. McGovern is said to be excellent, although I haven't read it yet.
You also might just want to browse Amazon.com's book section on Presidential biographies and read the reviews of other Amazon customers. That has
always worked pretty well for me. Good luck and happy holidays.