I recently came across Wayne Grudem’s “Basic List of Books” that he recommends for a theological library. Dr. Grudem is research professor (Bible and Theology) at Phoenix Seminary. His ‘Systematic Theology’ book is widely used in seminaries and Christian colleges.
Dr. Grudem earned his B.A. at Harvard, M.Div. from Westminster, and a Ph.D. from the University of Cambridge. You can view his faculty page here.
Hopefully this list will be a good resource for those looking to build a theological library. Below I have posted two other links;