I do love a good bit of 1960s/70s childrens' book illustration and a dealer friend, knowing this, recently gave me a slightly mouldy copy of Gianni and the Ogre by Ruth Manning Sanders, not so much for the stories but for the illustrations by William Stobbs. I've picked 5 (which is the maximum number of pictures blogger will cope with in one post) but I could happily have shared all of the pictures in the book.
Stobbs was, like many working illustrators, also a teacher in art colleges, including the London College of Printing. His list of titles illustrated is quite impressive. Wikipedia tells us just a tiny bit more. And for those who like the striking character of the pictures above and would like to see more then there are few to find through Google and a very few at Flickr.