Play 1...d6 Against Everything de Erik Zude et Jörh Hickl
"Renowned German chess trainers Erik Zude and Jörg Hickl have created an ideal club player’s repertoire for Black. This compact manual presents a set of lines that is conveniently limited in scope, yet varied, solid and complete.
The core repertoire is based on lines that the authors have successfully played at (grand)master level for decades: the Antoshin Variation of the Philidor Defence against 1.e4 and the Old-Indian Defence against 1.d4. There is only a limited number of plans, ideas and structures that you need to learn, and very few forcing variations.
You will develop your position with a sequence of strong standard moves and start your highly effective counterplay. [...]"