Frank Langella as an actor is one of those guys who doesn't go in for a lot of rigmarole; he just does the job. I happen to think he does it quite well--check out the 1979 version of Dracula, or The Ninth Gate, where he stood out well against Johnny Depp's scenery chewing performance if you don't know what I'm talking about.
On to the book review, though (one gets the impression Mr. L. wouldn't stand for too much ass kissing about his accomplishments, "Get it done." he might say.)
As a memoir, this is adequate. There are some details about his life, how he started in acting as a theater apprentice, how he eschewed the Actor's Studio way of acting in favor of Stella Adler, how he met JFK as a young man, his friendships with people like Raul Julia, Alan Bates, a few people he didn't care for, such as Rex Harrison, he tells it like it was. There were some details about ladies he dated that seemed like too much information--not salacious details, just stuff that seemed a little unflattering.
This is more of a remembrance of the more famous and the slightly less famous people Frank has known, basically, it does what it says on the tin. Again, don't look to this for overly salacious dish, but do appreciate the way he reveals his own character and values in the way he speaks about friends and the not so friendly.
If you're a fan like I am, this book is highly recommended.