I have been asked the question on the books I would recommend for Design Strategy and here is the list I have compiled. Top 3 are must read.
Business Model Generation: A Handbook for Visionaries, Game Changers, and Challengers by Alexander Osterwalder and Yves Pigneur
Blue Ocean Strategy: How to Create Uncontested Market Space and Make Competition Irrelevant by W. Chan Kim and Renee Mauborgne
Predictable Magic: Unleash the Power of Design Strategy to Transform Your Business by Deepa Prahalad and Ravi Sawhney
Building Design Strategy: Using Design to Achieve Key Business Objectives by Thomas Lockwood and Thomas Walton
Delivering Happiness: A Path to Profits, Passion, and Purpose; A Round Table Comic by Tony Hsieh and Rob Ten Pas