The study of the human sex drive in both the woman and the man, and the difference in sex drive between different people.

Studies the general act of sex.

Studies the woman's vagina. As well studies: The condom as we know it is a popular method of preventing disease and unwanted pregnancy. Now there's a women's version as well. Also studies the woman's orgasm.

Includes info on Digital Dating, ""52 Ways to Lure a Lover"", and ""flirting 101""

Loving Hands: The human sense of touch. A Nose for Sex: The search for the perfect sexual smell. Taste: Sexual tastes.

Focuses mainly on masturbation, the myths, the dangers, and the common factors involved with male and female masturbation.

Focuses on the general aspects and problems of puberty among children and teens and the lowering puberty age.

Focuses on the people who are gay, choosing your sexuality, homophobia, and what it means to be gay.

Focuses on anal sex

Focuses on sexual cycles, and menustration.

Focuses on sperm, ejaculation, and the formation/activity of male sperm cells.

Focuses on the controversial activity of circumcision.

Focuses on intersexed people, and hermaphrodites.