You've probably seen the publicity about Puffin's 70th birthday. To celebrate, Puffin has produced a list of the 70 favourite childrens' books it has published. Several papers have joined in eg The Bookseller and The Independent. The Guardian has an article including the full list as well as a gallery of its own favourites and an article about Kaye Webb, probably the most famous Puffin editor and the one who set up the Puffin Club. The Archives Hub is also featuring Kaye Webb at the moment.
PS June 10 - another article added, from the Independent.