In episode three of the 2019 Booker Prize podcast, host Joe Haddow interviews three of this year's shortlisted authors Lucy Ellmann, Bernardine Evaristo and Elif Shafak at the shortlist party, held at the Serpentine Gallery Pavilion.We also headed to the launch of Margaret Atwood's shortlisted book The Testaments, held at the Waterstones flagship store in Piccadilly, where we interviewed Waterstones' Managing Director, James Daunt and their fiction buyer Bea Carvalho.Finally, we chat to White Lies songwriter and guitarist Charles Cave to discuss why he finds reading on tour more enjoyable than reading when he's in busy London.