A book about flow, the concept of happiness through which one is fully engaged in an activity. Originally coined by the psychologist Mihaly Csikszentmihalyi (who is known for his work exploring motivation, happiness, and creativity), flow is a state of complete absorption in the situation at hand. Csikszentmihalyi first began wondering about this state while exploring creativity -  he saw painters completely involved in their work but losing interest once it was complete, and the concentration of jazz musicians improvising together in a jam session. Focusing on that state of mind, the complete engagement and immersion that these creatives had, Csikszentmihalyi theorized that that flow was a key to happiness.

This book is a collection of photographs of people and the activities they flow in. Above are examples of spreads.