From the reviews of the third edition:
"The book is a combination of rigour, detail, and clarity. The prose is succinct and accessible, and the illustrations are appropriate . Of course, protozoologists will benefit from owning, or having access to this book, but others including applied and pure ecologist and broad range of phylogenists, microbiologists, and ultrastruturalists will appreciate its content and views. it is a comprehensive reference work for students, teachers, and researchers interested in ciliate phylogeny, taxonomy, life histories, structure, and function." (David J.S. Montagnes, Limnology and Oceanography Bulletin, Vol. 18 (1), March, 2009)