Remember the days when letters with stamps were posted? The momentary mystery of what the contents held, deciphering the handwriting to identify the sender.

Times have changed and personal mail and letter writing are almost things of the past, but thankfully we still have books: ‘Letters to Klaus’ pays tribute to both. In 1976, Klaus Flugge (what a name!) began the publishing company Anderson Press, which has given us Elmer, I Want My Potty and many other marvellous kids’ books.

Over the years, many illustrators have sent him letters in colourfully adorned envelopes and Klaus has displayed more than 200 of them in his office. Letters to Klaus is a selection of these letters from many award-winning artists, and their idiosyncratic envelope art and accompanying stamps are enchanting. It is a charming gem of a book, and even more importantly, all the proceeds go to the Save the Children Fund.

Alexa Dretzke