Who is John Lennon from the biography, John Lennon?

Lennon was born on October 9,1940 in Liverpool, England to Julia and Alfred "Freddie" Lennon during a violent air raid by the German Luftwaffe. The author begins with Lennon's troubled youth as a temperamental and obstinate boy who performed poorly in school, but he devotes most of the book to Lennon's success with The Beatles, and concludes with the star's solo musical career and tragic death outside his apartment in New York City.