I think I need to get myself a copy of this classic https://usborne.com/gb/the-world-of-the-unknown-ghosts-9781474976688 #70s #Ghosts #theworldoftheunkown #usbornebooks

'Carrying Secret Messages' from The Knowhow Book of Spycraft by Judy Hindley and Falcon Travis, illustrated by Colin King (1975) #1970s #Books #SpyCraft #UsborneBooks