David Pearce is a British philosopher of the negative utilitarian school of ethics. He is most famous for his advocation of the idea that there exists a strong ethical imperative for humans to work towards the abolition of suffering in all sentient beings. Many of Pearce's essays can be found online, but he seems not to have published any book in paper, although some of his work like The Hedonistic Imperative could easily make a book. In most of his essays, Pearce details how he believes the abolition of suffering can be accomplished through modern technologies and mainly through genetic engineering. Other technologies that Pearce finds important for abolishing suffering are nanotechnology, pharmacology, and neurosurgery; Pearce believes that these could potentially converge to help humans transform into more enhanced states, first as transhumans and later as posthumans. Pearce lives in Brighton, UK.

Nick Bostrom (born Niklas Boström on 10 March 1973) is a Swedish philosopher at the University of Oxford known for his work on existential risk and the anthropic principle. He holds a PhD from the London School of Economics (2000). He is currently the director of The Future of Humanity Institute at Oxford University.
In addition to his writing for academic and popular press, Bostrom makes frequent media appearances in which he talks about transhumanism-related topics such as cloning, artificial intelligence, superintelligence, mind uploading, cryonics, nanotechnology, and the simulation argument.

Daniel Clement Dennett (born March 28, 1942 in Boston, Massachusetts) is an American philosopher and cognitive scientist whose research centers on the philosophy of mind, philosophy of science and philosophy of biology, particularly as those fields relate to evolutionary biology and cognitive science. He is currently the Co-director of the Center for Cognitive Studies, the Austin B. Fletcher Professor of Philosophy, and a University Professor at Tufts University. Dennett is a noted atheist and secularist, a member of the Secular Coalition for America advisory board, as well as a prominent advocate of the Brights movement.