Big Ideas Simply Explained is a 78-book series with 78 released primary works first released in 1998 with contributions by D.K. Publishing, R.G. Grant, Will Buckingham, Peter Singer, Peter J. King, Douglas Burnham, Clive Hill, John Marenbon, Marcus Weeks, Nigel C. Benson, Catherine Collin, Antón Corriente, Joanna Ginsburg, Voula Grand, Merrin Lazyan, Niall Kishtainy, Paul Kelly, Paul Kelly, Shulamit Ambalu, Sam Atkinson, Stanley Wells, Paul J. Ruditis, Paul Ruditis, James Canton, John Farndon, Danny Leigh, Louis Baxter, Kieran Grant, Damon Wise, DK, Shanna Hogan, and Various.