Princess Beatrice has stepped out for an engagement close to her heart. Prince Andrew’s eldest daughter visited West Thornton Primary School in Croydon earlier this week, as part of Oscar’s Book Club in association with Amazon Reading Volunteers. The princess, 35, was photographed reading to pupils at the school, something she is incredibly passionate about. Princess Beatrice is patron of Oscar’s Book Prize, supported by Amazon Books and the Evening Standard. The Oscar’s Book Prize has previously described Beatrice’s support as “invaluable”, writing on its website: “Amazon is of course the sup…