Product Talk · Teresa TorresMay 4, 2026
May 4, 2026 · 6 min
“Continuous Discovery Habits turns five this year. And to celebrate we are reading the book together. Each month, I am releasing an in-depth reading guide that includes: * The chapters we will be reading * A preview of the most important concepts we'll be learning about * Short videos you can”
SVPG · Marty CaganMay 9, 2011
May 9, 2011 · 3 min
Marty Cagan argues that the single most valuable thing a product manager can do is run face-to-face user tests on prototypes or live products. Each test has two parts in sequence: a usability check to see whether users…
Product Talk · Teresa TorresAug 21, 2024
Aug 21, 2024 · 5 min
Teresa Torres addresses a recurring question from product teams: who should count as a customer for interviews in continuous discovery. She argues that a customer is whoever uses the product or makes the purchase…
Product Talk · Teresa TorresOct 11, 2023
Oct 11, 2023 · 9 min
Teresa Torres argues that good continuous discovery depends on first surfacing the hidden assumptions behind each idea, since teams can't test beliefs they haven't named. She proposes five assumption categories…
Product Talk · Teresa TorresJun 1, 2022
Jun 1, 2022 · 7 min
Teresa Torres's continuous-discovery practice depends on interviewing customers every week, but finding participants is the hardest part and often blocks the habit. This Product in Practice piece profiles Dan Clem at…
Product Talk · Teresa TorresMar 8, 2017
Mar 8, 2017 · 7 min
Teresa Torres introduces the Ladder of Evidence, a framework for judging how reliable customer feedback is. Asking people what they would do in the future, as focus groups and surveys often do, yields weak signal…
SVPG · Marty CaganMar 17, 2013
Mar 17, 2013
Marty Cagan argues that product teams relying on long, pre-negotiated roadmaps repeatedly fail to deliver business results because of two unavoidable realities. First, at least half of ideas won't work, whether…
Product Talk · Teresa TorresOct 16, 2024
Oct 16, 2024 · 4 min
Teresa Torres argues that the biggest barrier to continuous discovery is getting consistent access to customers, and that teams must automate recruiting so interviews happen without weekly hustle. She explains that…
Product Talk · Teresa TorresOct 18, 2023
Oct 18, 2023 · 19 min
Teresa Torres argues that product teams should regularly test the underlying assumptions behind their ideas rather than whole solutions, so they can compare options quickly and drop weak ones early. She explains that an…
SVPG · Marty CaganOct 13, 2011
Oct 13, 2011 · 5 min
Marty Cagan reviews Eric Ries's book "The Lean Startup" and argues it is one of the best product books in years, relevant to both new and experienced product people and not only early-stage startups. He notes Ries…
SVPG · Marty CaganJan 29, 2018
Jan 29, 2018 · 3 min
Cagan argues that product discovery, the practice of validating ideas with real customers before building, is still essential in heavily regulated industries such as finance and healthcare, even though legal and…
Product Talk · Teresa TorresMar 2, 2022
Mar 2, 2022 · 8 min
Teresa Torres argues that frequent, consistent customer interviews are a keystone habit of continuous discovery, since they make other discovery habits easier to adopt. She addresses who to interview: early on, anyone…
Product Talk · Teresa TorresFeb 10, 2016
Feb 10, 2016 · 8 min
Teresa Torres explains how she selects participants for a product management research study that drew 90 responses in 48 hours. She argues that interviewing is qualitative and descriptive, so the statistical idea of a…
SVPG · Marty CaganNov 28, 2016
Nov 28, 2016 · 3 min
Marty Cagan argues that most discovery work needs little planning, but larger efforts such as multi-team initiatives call for deliberate framing before diving in. He describes two goals: aligning the team on the…
Product Talk · Teresa TorresJun 12, 2024
Jun 12, 2024 · 10 min
Convo's product team set out to test assumptions about a feature letting Deaf users bring an interpreter into a Zoom meeting, but running those tests over Zoom introduced confusing meta-tasks and technical problems…
Product Talk · Teresa TorresJul 3, 2024
Jul 3, 2024 · 3 min
Teresa Torres argues that atypical customer stories, the ones that stand out from the rest of an interview set, are valuable rather than something to discard during continuous discovery. Teams often focus only on shared…
SVPG · Marty CaganJan 7, 2009
Jan 7, 2009 · 3 min
Marty Cagan argues that the most important thing a product manager can do is get ideas in front of real target users, since that is where real learning happens. He addresses two kinds of gatekeepers who try to stand in…
SVPG · Marty CaganMar 5, 2010
Mar 5, 2010 · 4 min
Marty Cagan reflects on whether product discovery techniques built for software apply to non-technology products. He tested them while writing a book, using customer research, a small group of charter customers…
Product Talk · Teresa TorresApr 6, 2026
Apr 6, 2026 · 8 min
This book club reading guide introduces Chapter 5 of Continuous Discovery Habits, focused on continuous customer interviewing. Teresa Torres argues that product trios should interview customers on a weekly cadence…
SVPG · Marty CaganAug 25, 2021
Aug 25, 2021 · 5 min
Marty Cagan argues that during and after the pandemic, teams are sliding back into heavy requirements documents (PRDs) because remote collaboration is tiring. He reframes the core of strong product work as three things…
Product Talk · Teresa TorresDec 6, 2017
Dec 6, 2017 · 4 min
This post reports feedback from the first cohort of Teresa Torres's Continuous Interviewing course, which ran for 50 product managers, designers, and UX researchers. It recaps the course's rationale, drawing on…
Product Talk · Teresa TorresJul 21, 2021
Jul 21, 2021 · 4 min
Teresa Torres argues that engineers should be part of product discovery from the start, and offers three tactics for overcoming their resistance. Many engineers resist customer contact, but they still hold strong…
Product Talk · Teresa TorresJul 14, 2026
Jul 14, 2026 · 3 min
This podcast episode between Teresa Torres and Petra Wille argues that product teams are flooded with data but that not all evidence carries the same weight. Low-effort signals like support tickets and app reviews are…
Product Talk · Teresa TorresFeb 21, 2024
Feb 21, 2024 · 11 min
Teresa Torres argues that continuous customer interviews generate far more learning than teams can hold in their heads, and proposes the interview snapshot as a one-page artifact that captures a single conversation…