I started Jonathan Aitken's Nixon: A Life.  Jonathan Aitken 
was a member of Parliament in Great Britain as well as the Minister of 
State for Defense.  His biography of Nixon came out in 1993, and Aitken 
was convicted of perjury later, in 1999 (see here). 
 This book is considered to be rather pro-Nixon, and I one time read an 
online commenter who remarked that two of Nixon's greatest defenders in 
recent history were convicts: Conrad Black and Jonathan Aitken.  Aitken 
in his book, however, narrates that he was not a Nixon fan at first, but
 he gained admiration for the man through his interactions with him, and
 he was impressed by Nixon's knowledge and kindness, notwithstanding 
Nixon's social awkwardness and clumsy mannerisms.
I was initially 
reluctant to read Aitken's book because I already had enough books by or
 about Nixon to read.  Plus, when I read that Aitken relied heavily on 
interviews with Nixon, I wondered why exactly I should read Aitken's 
book, since I already got Nixon's perspective through Six Crises and his memoirs.  What more was there for me to learn of Nixon's own perspective?
I
 checked out Aitken's book, however.  One reason was that I was in the 
mood to do so, the same way that I was in a mood to read Conrad Black's 
book, even though I was initially reluctant to read Black's biography of
 Nixon because I already had enough to read.  Another reason is that I 
had read about the extent of Aitken's documentation and interviews, 
especially when it came to controversial times in Nixon's career, such 
as his 1946 congressional race.
Now that I've checked out Aitken, I
 am glad that I decided to read it.  Stephen Ambrose praises Aitken's 
book, saying that Aitken had access to documents and people that many 
other biographers of Nixon did not have.  I saw that in my latest 
reading.  More than one of the biographies about Nixon that I had read 
quote an essay in which Nixon as a student at Whittier College expressed
 his liberal religious views about the resurrection of Jesus from the 
dead.  Nixon himself in his memoirs quoted that particular essay.  But 
Aitken quotes more essays that Nixon wrote as a college student at 
Whittier, on such topics as creation and evolution, the nature of the 
soul, and worldwide disarmament (Nixon expressed support for it).  Nixon
 in some of those essays relates how he evolved in his views from his 
Quaker religious conservatism and biblical literalism, to a more liberal
 outlook.  (Aitken goes on to say, however, that Nixon remained quite 
religious.)  As Aitken notes, those documents are not widely available. 
 (Whether or not that's still the case, I don't know.)  But you can read
 more about them in Aitken's book!
I was thinking about some of the other books about Nixon that I read when I was reading Aitken.  Don Fulsom in Nixon's Darkest Secrets
 says that "Young Dick favored his mom ('My mother was a saint,' he 
tearfully asserted, in his farewell speech to his White House staff) 
while, for unknown reasons, his siblings did not" (page 69).  Fawn 
Brodie says that Nixon's mother would really eviscerate her children 
when she gave them her little lectures after they misbehaved, making 
them feel horrible about themselves.  Brodie and Anthony Summers both 
refer to someone who claimed to have seen Hannah Nixon holding a switch 
while her son Richard was playing the piano.  But Aitken quotes Nixon's 
youngest brother, Ed, saying that: "She had a temper too, but 
controlled.  She knew how to throttle my Dad if he was hurting one of us
 unintentionally...she was the great defender of hurt feelings in our 
family...she always looked beyond an action thinking in terms of 
consequences two or three moves ahead, but she often did not say much at
 the time because she had a proper sense of privacy" (page 14).  
Apparently, Richard was not the only Nixon child who spoke highly of his
 mother!
Fawn Brodie paints a picture of conservative Whittier 
trying to keep the Mexicans outside of the town at bay, appealing to 
that to explain Nixon's later love for Latino people and culture.  (For 
Brodie, Nixon was repudiating Whittier's stuffiness.)  Aitken, however, 
says that there were Mexican students where Nixon went to school.
I'm
 not pointing these things out to say "gotcha," as if Aitken's story 
refutes the other stories, or vice-versa.  Rather, I believe that 
reality is complex, which is why it is difficult at the outset to tell a
 satisfying, completely accurate tale of what really happened, or what a
 person or situation was like.
Something that I liked about Fawn 
Brodie's book is that she talked some about how people who knew Nixon in
 his younger years reacted to the Watergate scandal years later.  Aitken
 offers similar anecdotes.  Aitken said that Nixon called his Whittier 
College mentor and coach, Chief Newman, when Nixon was feeling down in 
1975.  (I didn't know Chief Newman was still alive then!)  Aitken also 
talked about some of Nixon's professors.  One Whittier professor was a 
liberal and encouraged his students to think outside of the box, and his
 love for reading was contagious!  He disagreed with how Nixon conducted
 his political campaigns, and yet he and Nixon continued to stay in 
touch for years.