Kosko holds Bachelors degrees in philosophy and in economics from USC, a Masters degree in applied mathematics from UC San Diego, a PhD in electrical engineering from UC Irvine, and an online J.D. in law from the online Concord Law School. He is an attorney licensed in California and federal court, and worked part-time as a law clerk for the Los Angeles District Attorney's Office.
Kosko is a political and religious skeptic. He is a contributing editor of the libertarian periodical Liberty, where he has published essays on “Palestinian vouchers" and the experience of taking the infamous California bar examination.