Eroticism (from the Greek ἔρως, eros—"desire") is generally understood to refer to a state of sexual arousal or anticipation of such – an insistent sexual impulse, desire, or pattern of thoughts, as well as a philosophical contemplation concerning the aesthetics of sexual desire, sensuality and romantic love. In her introduction to the women's erotic fiction anthology Totally Heterotica, erotic artist and lesbian theorist Susie Bright states: "The very word 'erotic' implies superior value, fine art, an aesthetic which elevates the mind and incidentally stimulates the body". As French novelist Honore de Balzac pointed out, eroticism is dependent not just upon an individual's sexual morality, but the culture and time that individual resides in as well.

Because the nature of what is erotic is fluid, early definitions of the term attempted to conceive eroticism as some form of sensual or romantic love or as the human sex drive (libido); for example, the Encyclopédie of 1755 states that the erotic "is an epithet which is applied to everything with a connection to the love of the sexes; one employs it particularly to characterize...a dissoluteness, an excess". However, because eroticism is wholly dependent on the viewer's culture and personal tastes pertaining to what, exactly, defines the erotic, critics have often confused eroticism with pornography, going so far as to say: "[Eroticism] is simply high-class pornography; better produced, better conceived, better executed, better packaged, designed for a better class of consumer." This confusion, as Lynn Hunt writes, "demonstrate the difficulty of drawing...a clear generic demarcation between the erotic and the pornographic": indeed arguably "the history of the separation of pornography from eroticism...remains to be written".

Marina Abramović (Serbian Cyrillic: Марина Абрамовић; born November 30, 1946) is a Belgrade-born New York-based Serbian performance artist who began her career in the early 1970s. Active for over three decades, she has recently begun to describe herself as the "grandmother of performance art". Abramović's work explores the relationship between performer and audience, the limits of the body, and the possibilities of the mind.

Marina Abramović's great uncle was Patriarch Varnava of the Serbian Orthodox Church. Both of her parents were Partisans during the Second World War: her father Vojo was a commander who was acclaimed as a national hero after the War; her mother Danica was a major in the army, and in the mid-sixties was Director of the Museum of the Revolution and Art in Belgrade.

Abramović's father left the family in 1964. In an interview published in 1998, she described how her "mother took complete military-style control of me and my brother. I was not allowed to leave the house after 10 o'clock at night till I was 29 years old. ... [A]ll the performances in Yugoslavia I did before 10 o'clock in the evening because I had to be home then. It's completely insane, but all of my cutting myself, whipping myself, burning myself, almost losing my life in the firestar, everything was done before 10 in the evening."

Boris Vallejo (born January 8, 1941) is a Peruvian-born American painter. He immigrated to the United States in 1964, and he currently resides in Allentown, Pennsylvania. He frequently works with Julie Bell, his wife, painter, and model.

Vallejo works almost exclusively in the fantasy and erotica genres. His hyper-representational paintings have graced the covers of dozens of science fiction paperbacks and are featured in a series of best-selling glossy calendars. Subjects of his paintings are typically Sword and sorcery gods, monsters, and well-muscled male and female barbarians engaged in battle. Some of his male figures were modeled by Vallejo himself, and many of his later female characters were modeled by his wife. His latest works still retain heavy fantasy elements, but lean more towards the erotic rather than pure fantasy themes.

Vallejo commenced painting at the age of thirteen and had his first illustration job at the age of sixteen. After emigrating to the United States in 1964, he quickly garnered a fan following from his illustrations of Tarzan, Conan the Barbarian, Doc Savage and various other fantasy characters (often done for paperback fiction works featuring the characters). This led to commissions for movie poster illustration, advertisement illustration, and artwork for various collectibles - including Franklin Mint paraphernalia, trading cards and sculpture. Along with Bell, Vallejo presents his artwork in an annual calendar and various books. Vallejo's work is often compared to the work of Frank Frazetta, not only because it is similar stylistically but also since Frazetta painted covers for paperbacks of some of the same characters.

Alan Wilson Watts (6 January 1915 – 16 November 1973) was a British philosopher, writer, and speaker, best known as an interpreter and populariser of Eastern philosophy for a Western audience. Born in Chislehurst, he moved to the United States in 1938 and began Zen training in New York. Pursuing a career, he attended Seabury-Western Theological Seminary, where he received a master's degree in theology. Watts became an Episcopal priest but left the ministry in 1950 and moved to California, where he joined the faculty of the American Academy of Asian Studies.

Living on the West Coast, Watts gained a large following in the San Francisco Bay Area while working as a volunteer programmer at KPFA, a Pacifica Radio station in Berkeley. Watts wrote more than 25 books and articles on subjects important to Eastern and Western religion, introducing the then-burgeoning youth culture to The Way of Zen (1957), one of the first bestselling books on Buddhism. In Psychotherapy East and West (1961), Watts proposed that Buddhism could be thought of as a form of psychotherapy and not just a religion. Like Aldous Huxley before him, he explored human consciousness in the essay, "The New Alchemy" (1958), and in the book, The Joyous Cosmology (1962).