Ezra T. Newman on Albert Einstein
Ezra T. Newman is professor emeritus at the University of Pittsburgh. Newman was a prominent contributor to the golden age of general relativity (roughly 1960-1975). In 1962, together with Roger Penrose, he introduced the powerful Newman/Penrose formalism for working with spinorial quantities in general relativity. In 1963, Newman and two coworkers discovered the NUT vacuum, an exact vacuum solution to the Einstein field equation which has become a famous counterexample to everything. In 1965, he discovered the Kerr/Newman electrovacuum, one of the best known of all exact solutions. Newman has continued to make important contributions. Some of his most interesting recent work has involved the problem of reconstructing the gravitational field within some region from observations of how optical images are lensed as light rays pass through the region.

Joe Nuzzolo on Salvador Dalí
Founder and president of the Salvador Dalí Society, Joseph Nuzzolo is one of the foremost Dalí experts. He is solely responsible for building the largest known private collection of Dalí works in the world, including paintings, drawings, sculptures and graphics.

Marie Duzi on Kurt Gödel
Marie Duzí, associate professor of Mathematics at the Technical University of Ostrava's department of Computer Science and associate professor at Charles University's department of Logic in Prague, has written widely on mathematical logic, complexity, computability and informatics among other things. She has had an abiding interest in logician Kurt Gödel resulting in a published paper on his famous Incompleteness Theorems. And she is a member of the editorial board of the philosophical journal Organum F.

Tamas Pataki on Sigmund Freud
Dr. Tamas Pataki is Honorary Senior Fellow in the Department of Philosophy at the University of Melbourne, Australia, and Honorary Fellow at Deakin University, also in Melbourne. He has published several philosophical articles in academic journals and in several academic anthologies, such as Racism in Mind (Cornell University Press, 2004). He has also reviewed for The Australian, The Age, Australasian Journal of Philosophy, Metascience and, the Australian Book Review. A review essay, Narcissism Incarnate, in The Australian Review of Books (August 1999) won the Australasian Association of Philosophy Media Prize. In 2007 he published a polemical book Against Religion (Scribe Publications 2007), which drew a vigorous critical response.

Dan Twyman on Salvador Dalí and Pablo Picasso
Dan Twyman began his work in the art world back in 1979 while learning the art of lithography in a print shop that has been in business for over 70 years. Twyman moved on to work with an art publisher and helped to publish over 50 various artists works. Because of Twyman's background as a publisher and artist, and his love for the works of Salvador Dalí, he went to work for a known Dali broker and soon became the number one art consultant for the firm. Dan Twyman has been selling the works of Salvador Dalí for over 12 years now and has been called upon by thousands of art collectors to answer questions about their etchings, engravings, lithographs, sculptures and more. Dan is currently the Senior Art Consultant for the prestigious Salvador Dalí Society.

Clare Washbrook on W.B. Yeats
Clare Washbrook is an award winning poet, former journalist and English teacher. She has been the top poetry expert on allexperts.com for five years. She studied poetry under Professor Jon Glover (current editor of Stand) and John Lyons. She is regularly published in UK poetry journals and is a rep for The Poetry Society. She has recently been an advisor for an ITV series about War Poets and is currently working on two new collections of poetry as well as prose works.

Elliott King on Salvador Dalí

Elliott King is an art historian specialising in Salvador Dalí's art and writing. Educated at the University of Denver, the Courtauld Institute of Art, and the University of Essex, King has been a pioneer in the critical study of 'late Dalí' (i.e., the artist's work after 1940) and has presented and published extensively on various aspects of the artist's production. His areas of expertise include Dalí's 'Nuclear Mysticism' (intersections of art, physics, and religion), Dalí and science, Dalínian cosmogony, Dalí and Film, and issues surrounding the artist's critical reception in the United States.

Pablo Muchnik on Immanuel Kant
Pablo Muchnik is Assistant Professor at Siena College, where he directs the Symposium on Living Philosophers. Educated in Argentina, he received his Ph.D. from the New School for Social Research (2002) and studied a few years in Germany. He specializes in Kant, modern philosophy, and political philosophy. He has written articles on Kant, Descartes, Hobbes, and Rousseau, and received various national and international scholarships and awards. He just finished his first book on Kant's doctrine of radical evil, and is co-editing an anthology with Sharon Anderson-Gold and editing one of his own.

Karen Kleinfelder on Pablo Picasso
Professor of Art History at California State University Long Beach, Karen L. Kleinfelder, Ph.D., describes herself this way: "It seems that I have given the best years of my life to a dead artist: Picasso. Graduating from the University of Michigan in 1989, I wrote my Honors undergraduate thesis, masters thesis, and dissertation on various aspects of Picasso’s art. Published writings includeThe Artist, His Model, Her Image, His Gaze: Picasso’s Pursuit of the Model and Essays in Picasso: Inside the Image and Fingering Ingres."