Did you know today is World Turtle Day? To mark the occasion, we'd like to introduce you to Bert the Turtle. He can be found on the front cover of a vocal score of Bert the Turtle's The Duck and Cover Song (shelfmark VOC/1953/CARR), which forms part of the British Library's extensive printed music collections.

The artwork and associated song formed part of a US Cold War campaign devised in 1951 to encourage children to ‘duck and cover’ should they see ‘the flash’ - an atomic explosion. You can hear the song here.