On this weekend's "Sunday Square Off," we take a break from daily politics with our annual "Arizona Books Show," featuring works by two Arizona authors and a third book on a recent Arizona scandal:

How Arizonans became guinea pigs for sham blood tests - watch in the player above

-In his new book "Bad Blood: Secrets and Lies in a Silicon Valley Startup," Pulitzer Prize-winning reporter John Carreyrou documents the Theranos scandal - the blood-testing fraud that got a big hand from Arizona Gov. Doug Ducey and the Legislature in bamboozling consumers and investors.

Piano prodigy living with chronic illness

-Phoenix author Andrea Avery shares her intimate story, "Sonata: A Memoir of Pain and the Piano," about remaking her life after losing her most cherished gift.

How LBJ was consumed by America's 'nightmare year'

-Arizona State University Professor Kyle Longley takes us back to 1968, a "nightmare year" for America and President Lyndon B. Johnson, in Longley's new book, "LBJ's 1968: Power, Politics, and the Presidency in America's Year of Upheaval."

LBJ's presidency bookended by assassinations

"Sunday Square Off" airs at 8 a.m. Sundays on 12 News, after NBC's "Meet the Press."