Reformational Publishing Project/ Paiedia Press are leading the way in getting reformational books into readers' hands at a great price. This is a book comprises a series of articles by Robert Knudsen compiled by his son Donald. It also has an appreciative introduction from William Edgar.
The range and scope of the articles are testimony of Knudsen's wide areas of interest. Knudsen studied under Cornelius van Til and S. U. Zuidema. From 1958 he taught at Westminster theological Seminary where he taught apologetics and courses on Dooyeweerd's philosophy (for an outline of the syllabus see here), His main area of expertise was on existential theology (his Masters was on Tillich, Niehbuhr and Berdyaev) . All three of these areas are reflected in this compilation.