Date: Friday, 23rd May

For more information, please visit the bookseller's website: www.toppingbooks.co.uk

Date: Saturday, 24th May

For more information, please visit the Festival website: http://www.hayfestival.com/wales/

Barnes is also scheduled to appear at Topping's Bookshop in Bath on Friday, 23rd May.

Date: Sunday, 10th August

Time: 11.30 a.m.

For more information or to book tickets, please visit the Festival Website: http://www.edinburgh-festivals.com/international/