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|title=The Grand Tour: Letters and photographs from the British Empire expedition

|sort= Grand Tour: Letters and photographs from the British Empire expedition

|publisher=Harper Collins

|date=April 2012

|website=http://agathachristie.com/

|summary=A selection of correspondence from Agatha Christie in which she chronicled the ten-month voyage of the British trade mission in 1922, in which she and her first husband Archie took part, for the Empire Exhibition held two years later, generously illustrated with her own photographs and memorabilia.

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In 1922 Agatha Christie, already the author of three very successful books, was happily married with a small daughter, and her heart's desire was to continue writing while she led a quiet life in the country. However her husband Archie was becoming increasingly restless and disenchanted with working in the City, and his longing for a change was suddenly to be fulfilled in a most unexpected way. An old friend, Major Belcher, 'blessed with great powers of bluff', presented them both with the opportunity of a lifetime – to join him on a trip to several imperial outposts in preparation for the forthcoming British Empire Exhibition to be staged at Wembley. Archie would be his financial adviser, and Agatha was cordially invited for the trip, as his wife. (Two-year-old Rosalind would have to stay at home, a decision which involved some soul-searching).