Kennedy's presidency also helps frame "The Letters of John F. Kennedy," edited by Martin W. Sandler (Bloomsbury Press: 352 pp., $20), which is, remarkably, the first collection of his letters to be compiled. I say remarkably because, like Barack Obama, Kennedy was a president who knew how to express himself on the page. The letters here run from personal to presidential, trivial to profound. At their best, they capture his personality, his sense of style and humor, as in the 1962 telegram he sent to the American Booksellers Assn. on the occasion of its annual convention, noting his regrets at not being able "to join you in person in order to discuss the inadequacy of the sales" of his first book, 1940's "Why England Slept."