International best-selling thriller Gone Girl, by Gillian Flynn last year helped one of the largest independent booksellers in the country, O’Mahony’s Booksellers, return to profit after two years of losses.

A director at one of the largest independent booksellers in the country, O’Mahony’s Booksellers, said yesterday that the firm’s performance “has improved dramatically”.

Sales of publishing phenomenon EL James’s Fifty Shades of Grey were not enough to prevent one of Ireland’s largest independent booksellers from going into the red last year.