Helen Lester is the author of It Wasn't My Fault (1989), Tacky the Penguin (1988), Effect of Source of Dietary Nitrogen on Nitrogen Balance and on Plasma and Urinary Amino Acids of Man (1969), Programmed Topics in Statics and Strength of Materials (1966), Effect on Serum Cholesterol and Nitrogen Retention of Young Men of Varying the Amount of Essential Nitrogen and Type of Non-essential Nitrogen (1965).