The build ‘‘quality of lifestyles (QoL)’’, because the Eighties, whilst it was once brought, is getting used customarily within the context of illnesses. components of one’s existence that give a contribution to QoL are sturdy actual and psychological future health, effective cognitive functioning, social help, having the ability to meet the necessities existence, optimistic feelings, and so on (Power, 2003). paintings on subjective health (SWB), nevertheless, used to be built within the context of fit lifestyle; it additionally has a heritage of greater than 30 years. in this 30-year interval components that experience an influence on SWB, resembling SES, gender, overall healthiness, age, and religiosity were pointed out (Diener, 2000). a 3rd self reliant line of study relates to what has been referred to as optimistic Psychology (Seligman & Csikszentmihalyi, 2000), that's, an emphasis on human strengths, akin to optimism, desire, knowledge, confident feelings, resilience, etc., which give a contribution to optimistic functioning in existence. lately, SWB has been linked to human strengths and to the move of confident psychology yet this didn't ensue for QoL, most likely as a result of its emphasis on individuals with illnesses. even if, QoL could be conceived of as a known time period that relates to everybody, fit or no longer. during this feel, it truly is heavily relating to SWB outlined as happiness (Diener, 2000). additionally, QoL encompasses confident feelings that transcend happiness and has the virtue that it may be utilized to many alternative domain names of lifestyles similar to interpersonal kinfolk, health-related occasions, and academic strivings. additionally, the mechanism(s) that underpin QoL and SWB could be studied on the subject of people’s pursuits and strengths of personality, that's, from a good mental point of view. one of these point of view can display the specificities of “quality” within the a number of domain names of lifestyles and, in particular, the optimistic feelings and strengths that give a contribution to a happier, fitter, and extra profitable lifestyles, even in face of adversity. as a result, regardless of the variations one of the 3 theoretical traditions, particularly QoL, SWB, and confident psychology, it's attainable to discover the typical floor they percentage and every of them can reap the benefits of notions built within the others. the purpose of the current publication is to collect those 3 traditions, convey the interactions of variables emphasised by means of them, and provides an integrative viewpoint from the optimistic psychology perspective. It additionally goals to increase the diversity of existence events within which one could search for caliber and which transcend the conventional emphasis of QoL on illnesses. hence, the content material of the proposed booklet covers various age populations (from kids to older adults), fit and other people dealing with illnesses in addition to humans dealing with difficulties of their interpersonal lives or of their targets. It additionally discusses elements that give a contribution to marital delight, health within the college context, and issues that folks worth and cherish. The chapters confer with notions reminiscent of happiness, curiosity, resilience, knowledge, desire, altruism, optimism, and spirituality/religiosity that signify designated human strengths. eventually, it emphasizes the position of objectives and motivation that attach SWB with self-regulation and coping with of one’s lifestyles priorities. To finish, the chapters integrated within the proposed edited e-book goal at bringing to the fore new theoretical advancements and examine on QoL, SWB, and confident psychology that bridges formerly distinctive theoretical traditions. The proposed booklet covers a extensive diversity of subject matters, addresses various theoretical pursuits and paves the best way for a extra integrative method. eventually, it brings jointly a world set of authors, from united states, Europe, Australia, and Asia.