Lenny’s Newsletter♥ 225
Nov 7, 2023 · 13 min
Subscriber post — summary onlyThe post introduces DRICE, a two-stage prioritization method for product and growth teams. It starts with RICE scoring (Reach, Impact, Confidence, Effort) to build a shortlist, then applies a deeper 30-minute DRICE…
Product Talk · Teresa TorresMay 13, 2020
May 13, 2020 · 9 min
“Good discovery starts with a clear desired outcome. A well-defined outcome provides a focal point for the product team and serves as a guiding light for their discovery efforts. It helps the team quickly identify and conserve their time and energy for the initiatives that matter most. However, when”
Lenny’s Newsletter♥ 86
Feb 8, 2022 · 10 min
Subscriber post — summary onlyLenny Rachitsky benchmarks what counts as good and great monthly SaaS churn, drawing on growth leaders and ProfitWell data across B2C, SMB/mid-market, and enterprise segments. He argues churn should be read by price…
SVPG · Marty CaganApr 15, 2012
Apr 15, 2012 · 3 min
Marty Cagan responds to a common challenge: why are products like Facebook, Amazon, and Google so successful if they seem poorly designed? He argues that product people often confuse their own tastes with the target…
Lenny’s Newsletter · Free post♥ 105
Nov 9, 2021 · 15 min
Elena Verna argues that a founder's first growth hire is one of the most consequential hires a startup makes, and that many founders begin with avoidable mistakes. She proposes six rules: define a growth model before…
SVPG · Marty CaganJun 16, 2012
Jun 16, 2012 · 3 min
Marty Cagan shares a curated list of favorite product and leadership mantras he has collected while visiting companies, explaining what each one reveals about good product practice. Many of the quotes are attributed to…
Product Talk · Teresa TorresApr 7, 2021
Apr 7, 2021 · 37 min
This final session of a three-part webinar series argues there is no single correct way to run product discovery, and that teams should instead be judged by underlying principles that fit their context. It covers two…
Product Talk · Teresa TorresAug 6, 2025
Aug 6, 2025 · 47 min
Teresa Torres recounts building an AI-powered 'interview coach' that gives students feedback on practice customer interviews, grounded in her Continuous Interviewing course rubric. She describes moving from a…
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…
HEY World · Jason FriedFeb 3, 2025
Feb 3, 2025
Jason Fried describes a six-week sprint at Basecamp focused on smoothing the trial-to-paid onboarding experience, which bundled many small changes at once: a sample Getting Started project, a one-step project creation…
Product Talk · Teresa TorresJul 17, 2024
Jul 17, 2024 · 12 min
Teresa Torres argues that a clear desired outcome sets the scope, latitude, and success measure for product discovery, yet many teams struggle to define one. She distinguishes outcomes (the impact of work on customers…
Product Talk · Teresa TorresSep 12, 2018
Sep 12, 2018 · 8 min
Teresa Torres describes coaching the CarMax Digital Merchandising team, a mature product team that already practiced discovery but lacked deliberate organization. Through interviews with the PM, designer, and tech lead…
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 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…
Product Talk · Teresa TorresMar 5, 2026
Mar 5, 2026 · 3 min
Teresa Torres interviews Matthias and Charlotte Kleverud, co-founders of Momental, about building a "GitHub for product management" that ingests documents, transcripts and recordings to map goals, decisions and…
Product Talk · Teresa TorresDec 11, 2019
Dec 11, 2019 · 8 min
This Product in Practice piece profiles Chris Hockley, a lean agile coach at SuperAwesome, who introduced the opportunity solution tree to several product teams through a staggered rollout. He found that teams grasped…
Product Talk · Teresa TorresAug 19, 2013
Aug 19, 2013 · 4 min
Teresa Torres argues that product teams often fall for confirmation bias: people notice evidence that supports their ideas and overlook disconfirming signals, even when given the same data. Her example shows how…
Lenny’s NewsletterSep 9, 2025
Sep 9, 2025 · 20 min
Subscriber post — summary onlyHamel Husain and Shreya Shankar outline a practical playbook for building AI evaluation systems that improve a product rather than just producing dashboards. The core argument is to start with error analysis by a domain…
Lenny’s Newsletter · Free post♥ 51
Sep 17, 2021 · 13 min
Behavioral scientist Kristen Berman argues that people often act against their own intentions, and that behavioral design, which blends psychology and economics, can help product teams close the gap between intent and…
Product Talk · Teresa TorresMar 11, 2026
Mar 11, 2026 · 5 min
Teresa Torres introduces a new series, Conversations with Claude, showing how she uses Claude Code for real work. Her first example is a content audit of Product Talk, which she delegated to Claude with a task file and…
Lenny’s Newsletter♥ 97
Aug 9, 2022 · 43 min
Subscriber post — summary onlyPart five of a six-part series on building a consumer business, focused on retention and finding product-market fit. The post argues PMF is a spectrum of confidence, signaled by flattening retention curves, organic…
Product Talk · Teresa TorresOct 9, 2025
Oct 9, 2025
Teresa Torres interviews SallyAnn DeLucia and Jack Zhou of Arize AI about building Alyx, the AI agent that helps teams debug, optimize, and evaluate AI applications. The team describes scrappy beginnings in Jupyter…
Product Talk · Teresa TorresSep 2, 2026
Sep 2, 2026 · 26 min
Teresa Torres argues that AI evals should be a core discovery habit for product teams, not just an engineering concern. Because LLM outputs are probabilistic and semantic, traditional pass/fail unit tests don't work…
Product Talk · Teresa TorresAug 22, 2013
Aug 22, 2013 · 3 min
Teresa Torres examines the common push to build a mobile app and tests the assumption that it will drive growth. Stakeholders often justify the idea with broad beliefs about mobile usage, yet the data on typical app…