From the reviews:“The authors … are congratulated for bringing out an advanced book on fundamental aspect when the scientists world over are looking forward to search for the extraterrestrial evidence of life on Mars, Europa and possibly on Moon. … useful to the students of sedimentology and micropalaeontology/ microbiology and researchers in the area of Earth Science. The book is strongly recommended for the institutional libraries. I am sure its reading would motivate the students and researchers … for high and extensive researches on the discussed problems.” (O. P. Varma, Journal of Indian Geological Congress, Vol. 3 (1), May, 2011)