London-based bookstore Shapero's children's book expert Roddy Newlands told MailOnline children's books handed down through generations have gained in value over the decades. 

Mr Newlands added: 'One of the great thing about children's books is that they are often handed down from generation to generation, even in these days of digitalisation and "screentime". 

'So you might have had a grandparent, great-grandparent (or even greater still) who would have acquired, for example, first editions of the Chronicles of Narnia, Rupert Bear annuals or the Peter Rabbit books when they were published, and no-one would have realised their exponentially increasing value in the interim.'

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