Deploy Empathy: A Practical Guide to Interviewing Customers
Source: https://deployempathy.com/ ↗
Hansen's book is a practical manual on customer interviewing written by someone who has done hundreds of them inside a bootstrapped software company.
The book's strongest feature is its granularity: transcripts, question phrasings, the actual sentences that open a conversation and the ones that close it.
For product direction it is the most hands-on book on user research currently available — less theory than Torres, more concrete than Ulwick.
Read it before running your next round of interviews; most PMs will find half their current habits flagged as unhelpful. Short, self-published, usable.
Central argument
Hansen argues that most customer interviews fail not because of flawed research design but because of specific conversational habits — leading questions, premature problem-framing, and talking more than listening — that practitioners don't recognize as harmful. Her core thesis is that empathy in interviews is not a disposition but a technique: learnable, repeatable, and teachable through exact sentence-level choices. The book demonstrates this with annotated transcripts and ready-to-use phrasings, positioning the interview as a craft skill rather than an intuitive talent.
Critique
Because Hansen's method was developed inside a bootstrapped B2B software company with direct customer access, it assumes an intimacy between interviewer and customer that doesn't always transfer to large-scale consumer products, enterprise contexts with procurement gatekeepers, or regulated industries where legal constraints shape what can be asked. The book is also deliberately atheoretical, which makes it immediately actionable but leaves practitioners without a framework for knowing when their interviews are systematically missing something — when, for instance, the sampling logic itself is the problem, not the question phrasing.
Why it matters for product
For a CPO running continuous discovery, the failure mode Hansen diagnoses — teams conducting interviews that confirm rather than challenge — is precisely what corrupts the input to prioritization and strategy decisions, making roadmaps feel evidence-based when they are not. The book's granularity is organizationally useful: because it operates at the sentence level, it can be used to coach PMs and designers on interview technique without requiring a methodological overhaul, which matters when discovery capability is uneven across a product organization.