De-la-Noy's many books included biographies of Denton Welch (Denton Welch: The Making of a Writer, 1984), Edward Elgar (Elgar: The Man, 1984), the Queen Mother (The Queen Behind the Throne, 1994), Edward Sackville-West (Eddy: The Life of Edward Sackville-West, 1988), and the Archbishop of Canterbury (Michael Ramsey: A Portrait, 1990), and other works such as The Honours System (1985) and Acting as Friends: The Story of the Samaritans (1987).
