In a modern world, where a tweet on Twitter or a photo on Facebook can instantly go viral, and sometimes attract all the wrong kind of attention, this year’s selection for Fairfield’s “One Book One Town” couldn’t be more timely.

The choice of Jon Ronson’s “So You’ve Been Publicly Shamed” for the townwide reading program was unveiled Tuesday morning at the main branch of the Fairfield Public Library. This is the ninth year the town has sponsored the “One Book One Town” program, which is designed to spark community discussion on the topic with a range of related activities.

Ronson, author of “The Psychopath Test,” “The Men Who Stare at Goats, “Lost at Sea” and “Them,” also writes for The Guardian newspaper and is preparing a movie adaptation of “The Psychopath Test.”

The book, according to Town Librarian Karen Ronald, has already provided the OBOT selection committee with much “thoughtful discussion.” The committee read nearly 30 books over four months before choosing Ronson’s to set the theme for this year’s program.

Ronald said the book is an exploration of social media and “how we use it to shame others, rather than show empathy.”

Library officials are calling Ronson’s planned March 8 visit to Fairfield the program’s “signature” event. He is scheduled to speak that day at 7 p.m. in Fairfield University’s Quick Center.

Other related activities include book discussions, lectures and a One Book One Town-inspired writing contest. The contest’s theme this year is the topic of judgment, and winners will be invited to a reception for Ronson and get an autographed copy of his book.

One Book One Town is presented by the Fairfield Public Library in partnership with the Pequot Library, Fairfield University and its bookstore, and the Fairfield Museum and History Center.

Registration for an “Evening with Jon Ronson” begins at 9 a.m. Feb. 16 for Fairfield residents via the “events calendar” at www.fairfieldpubliclibrary.org or by calling 203-256-3160. Non-residents may register starting at 9 a.m. Feb. 23.

Follow the One Book One Town blog at www.fairfieldpubliclibrary.org/obot .

For more information about the author, visit www.jonronson.com .