Seems like a nice desk diary, good size and certainly the cheapest I could find with postage included. Other similar diaries available on Amazon for a similar price (V&A Museum, National Railway Museum, Wainwright, etc.) by Brent Elliot and Frances Lincoln Publishers. It may not include the Royal Wedding public holiday due to the print date but I doubt many diaries on sale would.
# Diary: 112 pages
# Publisher: Frances Lincoln (6 May 2010)
# ISBN-10: 0711231141
# ISBN-13: 978-0711231146
# Product Dimensions: 23.4 x 17.2 x 2 cm
The RHS 'Wild in the Garden' Diary 2011 celebrates wildlife in the garden. It is illustrated with photographs of birds, mammals, amphibians and insects that may be found in gardens, plus tips on how to manage your garden to enhance the wildlife potential and thereby add interest and enjoyment. The diary is a week to view and includes all major national and religious holidays.