Happiness by Design: Finding Pleasure and Purpose in Everyday Life | 
pickThis is the kind of book I can listen to on audio - I can still get a lot of the meaning even if I tune out occasionally! But an interesting listen and full of practical strategies to improve happiness through both purposeful and pleasurable activities.
Joanne1 One for me by the sounds of it. 6y
Fernoppy @Joanne1 it was well read but aside from that, it was about how we engineer our happiness by using the way our brains naturally work as humans. Taking advantage of habits and routine and also of friends' abilities to predict outcomes of our decisions - and focusing on outcomes rather than the decision itself, with the congruent peak/trough affect of decision making. Easy to follow and some practical tips. 6y