Desi Arnaz and Lucille Ball, seen here in an image from the documentary “Lucy and Desi,” directed by Amy Poehler. Writer Todd S. Purdum’s new book, “Desi Arnaz: The Man Who Invented ...

Desi Arnaz and Lucille Ball, seen here in an image from the documentary “Lucy and Desi,” directed by Amy Poehler. Writer Todd S. Purdum’s new book, “Desi Arnaz: The Man Who Invented ...

Lucie Arnaz, Lucille Ball, Gary Morton and Desi Arnaz Jr. in January 1961. CBS via Getty Images. Ball and Morton were still married when the actress died at age 77 in 1989.

Desi Arnaz and Lucille Ball, seen here in an image from the documentary “Lucy and Desi,” directed by Amy Poehler. Writer Todd S. Purdum’s new book, “Desi Arnaz: The Man Who Invented ...

Lucille Ball is pictured with her husband Desi Arnaz and their two children, Desi Jr. and Lucie, in Los Angeles in1955. Writer Todd S. Purdum’s new book, “Desi Arnaz: The Man Who Invented Television,” ...

Lucille Ball and Desi Arnaz would go on to have a second child, Desi Jr., whose birth was famously written into I Love Lucy. Both Desi Jr., 72, and Lucie, 73, talked to Purdum for his book about ...

Many people still think of Desi Arnaz as Lucille Ball's foil on “I Love Lucy,” but he was most definitely not only that guy. (Bettmann Archive/Getty Images) Review by Ty Burr Luuuucy — he ...

Desi Jr. and Lucie Arnaz accept the Legacy of Laughter Award for their mother, the late Lucille Ball, in 2007. Getty Images A year later, Bardem told People that he could feel Arnaz’s spirit on set.