Flagship BBC Radio 4 programme visits Quentin in his studio
2015 sees the 50th anniversary of the weekday current affairs programme, and to celebrate the show's anniverasary, programme makers are focusing on fifty things that the British do well - so in February presenter Martha Kearney paid a visit to Quentin's studio to talk to him about illustration.
Quentin produced this piece of artwork (pictured) to commemorate the anniversary: showing Martha Kearney holding a celebratory glass of something bubbly, and being drawn inexorably skywards under a giant '50' balloon.
For more about the 'World at One at 50', visit the programme's website to find out more and join in: www.bbc.co.uk, or follow #WatO on Twitter
Click the following link to hear a BBC audio cliip of Quentin talking to Martha in his London studio: