If you ever interest how a citrus plant develops, and how it is related into the familie of Rutaceae, you might find all here. Also you find informations about water use, photosynthesis nad all other plant related information you right and in one book. No sharp colorphoto is present, but the informations you find writen here, is a compression of the 5 volumes 'Citrus Industy' by the University of Florida. Just a book you need and you should read if you realy have any buissness with citrus trees...