It will be the battle of the books this weekend as Brian O'Driscoll and Chris O'Dowd are both signing their new books in the city centre on Saturday.
Rugby icon Brian has recently published his autobiography, The Test and he will be singing copies of his book at Eason on O'Connell Street from 12pm.
Brian's autobiography includes juicy details about his relationship with his wife Amy Huberman, a trip to New York where he spent the night in jail after being arrested for assault and, of course, his illustrious sporting career.
Top Irish funnyman and actor Chris O'Dowd will be signing copies of his new children's book which is called Moone Boy: The Blunder Years at Dubray Books on Grafton Street from 11am.
The book is the first in a series of hilarious illustrated fiction and it follows 11-year-old Martin Moone and his adventures with imaginary best pal Sean Murphy.
Chris has had top success with Moone Boy on TV, as it has recently been revealed that ABC in the US are developing the series for American audiences. O'Dowd will both produce and write the new series but won't star in the remake.