Health Informatics and Personality traits is a book that attempts to explain the percieved attitude of health workers towards the acceptance and ethical usage of health information systems in Level 5 hospitals in Nyanza, Kenya. The research adopted the questionnaire survey targetting health workers trainee affliated to Kisii and New Nyanza PG level 5 hospitals in Nyanza region, Kenya. This book is relevant to health policy developers, health practioners and Information Technology experts,especially those dealing patients electronic records access, privacy and Security. The writing of this book was under the able guidance of Associate Prof. Miph Musoke Head of Department Applied Science School of Science and Dr. Gilbert Maiga Department of Information Technology and Computing, School of Business Studies Nkumba University . This book is recommended for all those interested in health informatics, information Technology and healthcare practitioners. Its also good for researchers at both undergraduate and postgraduate.