Customer and Problem Discovery
The Mom Test
This is one of the shortest and most practically useful books on customer interviews.
Competing Against Luck
This is the most accessible full treatment of Jobs to Be Done theory.
The Jobs to Be Done Playbook
This is a practical complement to Christensen’s more conceptual work.
Continuous Discovery Habits
This is one of the strongest books on making discovery a continuing operating practice rather than a one-time prelaunch exercise.
Talking to Humans
This is a concise and accessible field guide to customer discovery.
Lean Customer Development
Alvarez provides practical guidance for conducting customer discovery inside both startups and established companies.