Manual Therapy 16 (2011) 103 Contents lists available at ScienceDirect Manual Therapy journal homepage: www.elsevier.com/math Book review Research Design: Qualitative, Quantitative, and Mixed Methods Approaches, John W. Creswell, third ed. Sage Publications (2009). 260pp., Price: £ 25.59, ISBN: 9781412965576 Widely renown for his work and publications on qualitative and mixed methods research, John W. Creswell recently published the third edition of Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. The book is structured around 2 parts and 10 chapters that mirror the main stages of development of a research project. Although a plethora of books covering research design exist, this book is especially interesting because it very simply and clearly discusses the subject, mainly bringing useful comparisons between qualitative, quantitative and mixed methods approaches that aid the researcher in planning a research endeavour. While Creswell’s book covers the essential questions and concerns enabling the operationalization of a research project, it furthermore addresses issues that, to our knowledge, having read many books on the subject, are scarcely found elsewhere. These issues are presented in the first part of the book under the heading Preliminary Considerations and include an overview of the main uses and modes of presentation doi:10.1016/j.math.2010.09.003 of the review of the literature in a research protocol or report, as well as the use of theory. As an example, in Chapter 3 entitled Use of Theory, Creswell explicitly discusses the roles of theory that differ according to the types of research design (e.g. theory generation, theory verification), acknowledging that there are many possible variations within each research approach. Hence, this expanded and restructured edition of John Creswell’s Research Design is a user-friendly and rich scientific resource, and appears as a must for any researcher wanting to tackle the indispensable subject of research design by contrasting qualitative, quantitative, and mixed methods approaches. Kadija Perreault* Centre for Interdisciplinary Research in Rehabilitation and Social Integration, Université Laval, 525, boulevard Wilfrid-Hamel, Québec City, Québec, Canada G1M 2S8 * Tel.: 1 418 529 9141x6043; fax: 1 418 529 3548. E-mail address: kadija.perreault.1@ulaval.ca