while living and playing cricket in nelson before the war, constantine had made plans for a future legal career. james helped him with his studies for a short time, and he later worked in a local solicitors' office. in 1944 he enrolled as a student in the middle temple, london. to finance his studies, he continued his professional cricket career in bradford until 1948, and supplemented his income by coaching: at trinity college, dublin, in 1947 and in ceylon in 1953. constantine also extended his work in journalism and broadcasting, as a cricket reporter and as a radio commentator when the west indies toured england in 1950. he also wrote several cricket books, probably with the help of a ghostwriter. "cricket in the sun" (1947) covered his career but also discussed the racism he had encountered and suggested then-radical ideas for the future of cricket, such as a one-day "world cup". "cricketers' carnival" (1948), "cricket crackers", "cricketers' cricket" (both 1949) and "how to play cricket" (1951) were more traditional cricket books, which included coaching tips and opinions.