Michelle Obama, former first lady and now best-selling author, will bring her book tour to the Xcel Energy Center in St. Paul at 8 p.m. March 13.

Obama will talk about her memoir, “Becoming,” the best-selling book of the year with 3 million copies sold in the U.S. and Canada across all formats since it was published in November. It is among the fastest-selling nonfiction books in history and already among the best-selling political memoirs of all time, the Associated Press reported.

It’s a testament to Obama’s popularity that she has filled stadiums and other huge venues at 12 previous events in 10 cities. Her evening is titled “Becoming: An Intimate Conversation with Michelle Obama.” The announcement from the X did not indicate with whom she will talk during her St. Paul appearance. (The X can be configured to hold 20,000 people.)

Obama, writing in an easy across-the-kitchen-table style, discusses in her book growing up on Chicago’s South Side in a loving extended family, building her life step by careful step as she earned a law degree. Then she met a tall, lean guy with a wide smile and a relaxed demeanor.

Barack Obama became a politician against her wishes and propelled them to the White House as the first African-American couple. When their daughters were born, Obama spent much of her time trying to give them the happiest childhood possible as daughters of a man who was often not home but loved them deeply.

She also discusses her hard choice of giving up her career plans because she knew her husband could help the nation. And throughout she tackles the question of how a strong, capable black woman withstands the publicity surrounding any first lady.

Tickets for the March 13 event go on sale to the general public Saturday at 10 a.m. at BecomingMichelleObama.com.