Stars and their Spectra: An Introduction to the Spectral Sequence
'The quality and application of the first edition were acclaimed by numerous reviewers at the time, and the same epithets can be applied just as convincingly to this second edition ... Kaler's treatment of the subject contains something for all levels of interest; it is comprehensive and thorough, and his style very readable, almost conversational, with smatterings of wry humour. It is unreservedly recommended.' The Observatory