What's Wrong with My Plant (and How Do I Fix It?)
If you don't know how to care for plants, you can't care for bonsai. What I'm trying to say is bonsai are plants. This invaluable, thorough-going book features numerous clear photos and illustrations along with easy to follow text. It covers a range of potential problems and offers straight forward solutions
By David Deardorff and Katheryn Wadsworth. 450 pages with hundreds of great illustrations.