This is one of the biggest books in the Royal Library at Windsor Castle. John James Audubon’s immense 4-volume ‘Birds of America’ was made up of 435 hand-coloured prints. The artist insisted on having even the largest species reproduced life-size, resulting in dramatic prints on ‘Double Elephant’ size paper (approximately 100 x 67cm; 40 x 28 inches), one of the largest sizes of European handmade paper. | Royal Collection Trust