Book review in this article: Cell‐Mediated Calcification and Matrix Vesicles,. Edited by S. Yousuf All Elsevier Science Publishers B.V., Amsterdam, 1986, pp. 424, $100.00.J.T. Triffitt Gonadotropin Down‐Regulation in Gynecological Practice (Progress in Clinical and Biological Research Vol 225). Edited by R. Rollan, D. R. Chadha & W. N. P. Willemsen. Alan R. Liss Inc., New York, 1986, pp. 476, £42.00.R.W. Shaw Lecture Notes on Endocrinology Fourth Edition. By R. F. Fletcher. Blackwell Scientific Publications, Oxford, 1986, pp. 247, £8.95.D.F. Child Drug Therapy in Hypertension. Edited by J. I. M. Drayer, D. T. Lowenthal & M. A. Weber. Marcel Dekker, New York, 1987, pp. 397, $95.50.B. F. Robinson Infertility: Mule and Female. Edited by V. Insler & B. Lunenfeld. Churchill Livingstone, Edinburgh, 1986, pp. 740, £70.00.A.M. Jequier Recent Advances in Diabetes 2. Edited by Malcolm Nattrass. Churchill Livingstone, Edinburgh, 1986, pp. 213. £35.00R. Tattersall Disorders of Eating Behaviour: A Psychoneuroendocrine Approach (Advances in the Biomedical Series, Volume 60). Edited by E. Ferrari & F. Brambilla. Pergamon Press, Oxford, pp. 404. £60.00J. H. Lacey Contraceptive Steroids–Pharmacology and Safety Reproductive Biology. Edited by A. T. Gregoire & R. T. Blye. Plenum Press, New York, 1986, pp. 395, £61.10.K. Fotherby Molecular and Cellular Aspects of Reproduction (Advances in Experimental Medicine and Biology, Volume 205). Edited by D. S. Dhindsa & O. P. Bahl. Plenum Publishing Corporation, New York, 1986, pp. 454. $65.00.R. N. Clayton