Currently, the top ten sex books for men on Amazon are split between two subjects. 80% of the books are devoted to matters relating to male sexual health and performance issues, whilst the other 20% deals with sexual abuse and its aftermath.
Of the eight books centred around male sexual health, six focus specifically on improving potency, with Secret Aphrodisiac Sexual Stimulants Aphrodisiacs for Male Impotency, Building Libido & Sex Drive Enhancement by William Livingstone revealing the many aphrodisiac sexual stimulants that can be purchased – pills and tonics to boost the libido and bolster the erection – and Male Potency A Man’s Guide to Optimal Sexual Health by L B Johnson looking at the nutritional factors needed to achieve a healthy and fulfilling sex life, including many herbs of the Amazon rain forest.