First published in 1942, Reflections documents the life of John Henry Muirhead and the philosophical age that he observed. The first part of the volume derives from Muirhead's own autobiographical narrative, left unfinished when he died in May 1940. The second part features two final chapters written by John W. Harvey that comprehensively record the final stages of Muirhead's life. Harvey's chapters incorporate Muirhead's unfinished final years of commentary and begin at the man's retirement from Birmingham Chair in 1921.

As a student and teacher of philosophy, Muirhead's life ran almost precisely parallel to what he himself refers to as 'one of the most vivid and important movements in British and American philosophy'. He came into contact with some of the age's primary thinkers and as such, his own autobiography is important in providing an insight into his contemporary philosophical environment.