taufik maidanil's video: Kate shows off new do as she resumes her royal duties after the birth of Princess Charlotte

Looking tanned and relaxed - and still sporting her much talked about new fringe - the Duchess of Cambridge arrived back at work on Thursday. Kate, 33, was at the Anna Freud Centre in North London to learn more about how it is helping to change mental health care for children and young people on her first engagement since taking the summer off to spend with her young family. Looking slim in a £1,245 Ralph Lauren shirtdress, Kate's funky new fringe was on full display as she greeted Michael Samuel, chairman of the trustees of the Anna Freud Centre, with a warm embrace upon her arrival. After enjoying a summer break with her children, Prince George, two, and Princess Charlotte, four months, at their new family home, Anmer Hall, in Norfolk, aides said the Duchess was looking forward to getting back to a limited programme of engagements. Kate appeared in good spirits as she arrived at the centre in her supremely stylish dress. On Ralph Lauren's website, the 'Silk Austin Shirtdress' worn by Kate is described as having a 'supremely flattering fit' and comes with a patent leather belt that promises to accentuate the waist. Her choice of the Anna Freud Centre was an interesting one and will, say sources, set the tone for much of her work in the coming months. Kate is keen, they say, to explore child mental health issues and emphasise the importance of early intervention, as well as working with the whole family to provide children with in-school mental health services. Unusually for a royal visitor, Kate greeted Michael Samuel, chairman of Trustees, with a kiss on both cheeks. He told her and assembled guests: 'We are absolutely delighted that you are here and very grateful and hope that today you will get a real insight into all aspects of our work. 'Your continued support on this very important issue will be an invaluable ingredient towards making the real and urgent progress which is necessary in this area.'