Many of her works explore the liminality of certain phenomena including the practice of automatic writing (Sisters of Menon, 1972/79; Homage to Gertrude Stein, 2010), near death experiences (Clinic, 2004) and collective experiences of unconscious, subconscious and paranormal activity (Dream Mapping, 1974; Belshazzar's Feast, 1983-4; Dream Screens, 1996;
Susan Sarandon | Susan Sontag | Susan B. Anthony | Susan G. Komen for the Cure | Susan Tedeschi | Susan Collins | Susan Ashton | Susan Roces | Susan Glaspell | Susan Stroman | Susan Kare | Susan Hayward | Susan Haack | Susan Sheridan | Susan Lucci | Hiller | Susan Werner | Susan Sullivan | Susan Oliver | Susan Love | Susan Dey | Susan Cooper | Susan Blackwell | Arthur Hiller | Susan Reynolds | Susan Raye | Susan P. Crawford | Susan Maughan | Susan Ivanova | Susan Hill |
Its collection of web projects, which is available on its website, at www.diaart.org, includes works by Francis Alÿs, David Claerbout, Diller + Scofidio, Molissa Fenley, Susan Hiller, Glenn Ligon, Komar & Melamid, Feng Mengbo, Lisi Raskin, Allen Ruppersberg, Shimabuku, Gary Simmons, Stephen Vitiello, Ezra Johnson, Rosa Barba, and Barbara Bloom.
In 2002, Allen instigated the international group show "Con Art" with American curator Helen Varola and Carol Maund which explored art and conjuring’s shared principles of ‘cunning and conning’ through a gallery exhibition (including Mark Wallinger, Simon Patterson, Sarah Charlesworth, and others), a symposium (chaired by Susan Hiller), and a live performance event including, amongst others, Forced Entertainment, Ursula Martinez, and Tommy Angel.