Review of the hardback:: 'Jardine's book is rich in epistemological and historiographical issues, bold and stimulating in its speculations and detailed in its use of evidence. It should lead to further fruitful investigation … few will deny the substantial contribution made by its author to our understanding of the origin of Kepler's advanced conceptions …' Isis

Review of the hardback: 'Jardine's elucidating and profound essays deserve a wide audience.' Annals of Science

Review of the hardback: '… its importance in Kepler's scholarship has been recognised for many decades and Jardine's book at last brings it to light … Jardine's translation … is lucid and meticulously annotated. [His] essays are remarkable for their intrinsic human as well as scholarly interest.' Philosophy of Science