What hitherto undisclosed nuggets of wisdom do you have for keeping the spark in a relationship, Thom Yorke? Was King of Limbs secretly all about sex positions? Is your next solo album going to feature a picture of you look saucily over a pair of glasses?

These are questions we're all asking this morning, after the Radiohead frontman's image was found on the cover of a book entitled 'Marital and Sexual Problems in Men'.

Published in Iran, the book was spotted by @Merh_Dad "about three years ago at my uncle’s bookstore located in Mashhad", but only fully permeated Twitter this morning:

Writer John Updike and the other as yet unidentified man on the cover don't really offer any clues as to why Thom Yorke is there. Thom Yorke is just on this sexual manual cover and we're all going to have to accept it.

He did previously reluctantly dabble in agony aunt advice, being asked how best to approach a crush in an interview in 2013.