Not the least of our losses in this plague year was one of our greatest poets, Derek Mahon. Washing Up (Gallery Press) is a glorious late harvest - vigorous, funny, angry, blithe - beautifully produced, like all Gallery editions, and including, appropriately, a lovely tribute to another luminary of the dead poets society, Ciaran Carson. Mahon s last is vividly alive. Vincent van Gogh: A Life in Letters, edited by Nienke Bakker, Leo Jansen and Hans Luijten (Thames & Hudson) is a judicious selection from the magnificent six-volume Complete Letters of 2009. Had he not been a painter, Van Gogh could have made his name as a writer, as his correspondence shows. Impassioned, often heartbreaking, furious, funny and tender, these letters form a unique testament from a pivotal figure in 19th-century art. For my third choice, I am going to flout the rules by picking a book to be published in January 2021: Billy O Callaghan s Life Sentences (Cape) is a superb and moving novel of