Overall, this book will be essential reading not just for epistemologists focused on the regress problem, but also for anyone with a general interest in epistemology.
Cei Maslen Australasian Journal of Philosophy
Overall, the volume that Turri and Klein have put together is a fine addition to the growing discussion of infinitism. This is required reading for anyone already working in the area. As the essays comprising this volume demonstrate, whether or not substantive inquiry is unending, there is a great deal more to say about the prospects for infinitism.
Adam C. Podlaskowski, International Journal for the Study of Skepticism