The Two Truths Debate - Tsongkhapa and Gorampa on the Middle Way — by Sonam Thakchoe

This work digs into the debate of how the two truths are defined and how they are related by looking at two figures. It shows how their philosophical positions have dramatic implications for how one approaches Buddhist practice and how one understands enlightenment itself.

Freedom From Extremes - Gorampa's Distinguishing the Views  and the Polemics of Emptiness — translated by Lobsang Dargyay & Jose Ignacio Cabezon

Fundamental concept of "emptiness" that avoid the traps of eternalism and nihilism.