The first edition of this book was published in 1988, entitled Principles of Animal Technology I and edited by P J Kelly, K G Millican and Pamela J Organ. This edition has been revised and enlarged to include developments in the subject that have occurred in the last 12 years. It is well illustrated and many of the pictures are in colour. The Animals (Scientific Procedures) Act 1986 is covered in some detail as this impinges on all aspects of the care and use of animals in scientific procedures. Legal responsibilities of people working in this area are clearly described. Other topics covered include Animal Health, Housing and Environment, Routine Care, Feeding and Watering, Breeding and Development, Handling and Identification. Basic concepts of health and safety of staff are also introduced. The text has been specifically prepared for technicians beginning careers in Animal Technology and closely follows the syllabuses for the IAT Certificate examination and the animal technology unit of the BTEC First Certificate in Science (Animal Technology). It should also be of interest to any person starting work in establishments designated under the Animals (Scientific Procedures) Act 1986.