Griffey, Harriet. The art of concentration : enhance focus, reduce stress and achieve more / Enhance focus, reduce stress and achieve more Harriet Griffey. - London : Rodale, 2010. - vii, 246 p. ; 22 cm. Includes bibliographical references (p. [232-234]) and index. ISBN: 9781905744435 (pbk.) 1905744439 (pbk.) Subjects--Topical Terms: Attention.Stress management. Dewey Class. No.: 153.733 / GRI 2010