William McDougall 
Character and the Conduct of Life [PDF ebook] 
Practical Psychology for Everyman

First published in 1927, the preface reads: "It is directed to men and women of goodwill who are not completely satisfied with themselves, who believe that by taking thought they may add, however little, to their moral stature and to their efficiency in working towards whatever goals they may have adopted. The book is an essay in practical morals and is not at all concerned with ethical theories." A fascinating glimpse into psychology and morals from the early twentieth century, including chapters for young people, parents and children, husbands and wives!