https://www.amazon.co.uk/Imaging-Sun...aging+sunlight
Finally this will be available from the 9th June.
Covers the historical observations of the sun, early solar imaging and discusses the commercial filters currently available to the amateur.
Detailed descriptions of the various solar features which can be observed in white light and other narrow filters and contains a comprehensive section on the design and construction of the SHG, complete with examples (and results) being obtained with SHG's around the world.
Enjoy!!
