Preview and/or download the handbook in Google books where you can also search the whole contents.
The printed version of the handbook is available for purchase at http://www.amazon.co.uk/ and other Amazon sites. CreateSpace no longer exists, and Amazon is charging a much higher price for the printed version than when originally published. So, it may be wiser to get the free PDF and print the pages you need. There plans for a 2nd edition to be published in a year or two.
Aphalo, P. J.; Albert, A.; Björn, L. O.; McLeod, A.; Robson, T. M.; Rosenqvist, E. (eds.) 2012. Beyond the visible: A handbook of best practice in plant UV photobiology. COST Action FA0906 UV4growth. Helsinki: University of Helsinki, Department of Biosciences, Division of Plant Biology. ISBN 978-952-10-8362-4 (Paperback), 978-952-10-8363-1 (PDF). DOI: 10.31885/9789521083631, xxx + 176 pp.