This is a brand new book from Anita Brandon, that will take you (or your student) from being able to play what is written, to improvising hymns or any music as the techniques are the same. Anita is very thorough with building a solid foundation and uses the same multi-sensory techniques in the Let's Start Music Series. This is a probably the best book I have found for someone to start with, that has never improvised before, but would like to learn. If you are considering Hymnprovisation, but are not already an intermediate pianist, you might want to start here and then build on this book later, with Hymnprovisation. 149 pages with many illustrations.