Aestimatio provides critical, timely assessments of books published in the history of what was called science from antiquity to the early modern period in cultures ranging from Spain to India, and from Africa to northern Europe. The aim is to allow reviewers the opportunity to engage critically both the results of research in the history of science and how these results are obtained.

Reviewers in volume 6 include Andrew Barker, Eberhard Knobloch, Warren Van Egmond, Joshua J. Reynolds (2), Andrea Falcon, A. Mark Smith, Michael H. Shank, David Sider, Peter Adamson, Beatriz Porres de Mateo, J. L. Mancha, Katja Maria Vogt, Vivian Nutton, Mariska Leunissen, Fernando Q. Gouvêa, Max Lejbowicz, Janet Downie, Lloyd P. Gerson, Rachel L. Dunn, Micah T. Ross, David Bloch, Joseph W. Dauben, Gad Freudenthal, Sandra Herbert, Iain Macleod Higgins, William Wians, Sylvain Perrot, and Duncan J. Melville. There is also a response by Jens Høyrup.

• Table of Contents (page 5)
• Preface (page 9)
• On Philosophy and the Sciences in Antiquity by Andrew Barker (page 11)
• Eberhard Knobloch on Micolas de Cues. Les ecrits mathematiques by J.-M Nicolle (page 45)
• Warren Van Egmond on Jacopo da Firenze's Tractatus Algorismi edited by J. Hoyrup (page 47)
• Joshua J. Reynolds on Historical dictionary of Ancient Greek Philosophy edited by A. Preus (page 58)
• Andrea Falcon on Pseudo-Aristoteles (Pseudo-Alexander), Supplementa Problematorum edited by S. Kapetanaki and R.W. Sharples (page 62)
• A. Mark Smith on Galileo's Glassworks: The Telescope and the Mirror by E. Reeves (page 69)
• Michael H. Shank on Islamic Science and the Making of the European Renaissance by G. Saliba (page 73)
• David Sider on Diogene d'Apollonie edited by A.Laks (page 83)
• Perter Adamson on The Libraries of the Neoplatonists edited by C. D'Ancona (page 90)
• Beatriz Porres de Mateo on Las Tablas alfonsies de Toledo by J. Chabas and B.R. Goldstein (page 99)
• J.L. Mancha on Astronomy and Astrology in al-Andalus and the Maghrib by J. Samso (page 105)
• Katja Maria Vogt on Ancient Scepticism by H. Thorsrud (page 115)
• Vivian Nutton on Askleipios, Medicine, and the Politics of Healing by B.L. Wickkiser (page 121)
• Jens Hoyrup A response to Van Egmond on Hoyrup, Jacopo Da Firenze's Tractatus Algorismi (page 126)
• Mariska Leunissen on Aristotle on Life edited by J. Mouracade (page 137)
• Joshua J. Reynolds on Ancient Greek Diviniation by S.I. Johnston (page 149)
• Fernando Q. Gouvea on Plato's Ghost: The Modernist Transformation of Mathematics by J. Gray (page 155)
• Max Lejbowicz on The Astronomical Tables of Giovanni Bianchini by J. Chabas and B.R. Goldstein (page 165)
• Janet Downie on La medecine dans l'Antiquite grecque et romaine by H. King and V. Dasen (page 172)
• Lloyd P. Gerson on The Ancient Commentators on Plato and Aristotle by M. Tuominen (page 177)
• Rachel L. Dunn on Essays on David Hume by R.L. Emerson (page 181)
• Micah T. Ross on The Other Mathematics by L. Depuydt (page 186)
• David Bloch on Michael Psellos. Kommentar xur Physik des Aristoteles by L.G. Benakis (page 190)
• Joseph W. Dauben on From Summetria to Symmetry by G. Hon and B.R. Goldstein (page 198)
• Gad Freudenthal on Aristote au Mont-Saint-Michel by S. Gouguenheim (page 201)
• Sandra Herbert on Darwin Studies by M.J.S. Hodge (page 204)
• Iain Macleod Higgins on The Art, Science and Technology of Medieval Travel edited by R. Bork and A. Kann (page 206)
• William Wians on Encyclopedia of Ancient Natural Scientists edited by P.T. Keyser and G. Irby-Massie (page 217)
• Sylvain Perrot on La sphere et l'intervalle by A.G. Wersinger (page 222)
• Duncan J. Melville on Tablettes mathematiques de la collection Hilprecht by C. Proust with M. Krebernik and J. Oelsner (page 232)
• Books Received (page 237)