Where to Start with David J. Bland
David J. Bland is a product strategist, founder of Precoil, and one of the leading voices in the business experimentation space. He has spent his career helping companies move from gut-feel decision-making to evidence-based product development, working with organizations ranging from startups to Fortune 100 enterprises. His collaboration with Alexander Osterwalder, the creator of the Business Model Canvas, produced “Testing Business Ideas” (2019), a visual field guide containing 44 experiments for validating business concepts. The book has become a standard reference in product and innovation teams worldwide, particularly in organizations practicing dual-track agile or lean product development.
Start here
Testing Business Ideas
David J. Bland & Alexander Osterwalder · 368 pages · 2019 · Easy
Themes: experiment design, business model validation, rapid prototyping, assumption mapping, dual track agile
A comprehensive, beautifully designed field guide to validating business ideas through structured experimentation. David J. Bland and Alexander Osterwalder built this book as the practical companion to the Business Model Canvas and Value Proposition Canvas.
Why Start Here
The book contains 44 experiments organized by what they test: desirability (do customers want this?), feasibility (can we build this?), and viability (should we build this?). Each experiment is presented as a card with a consistent format: description, strength of evidence, time and cost, setup instructions, and tips for getting reliable results.
This structure makes the book uniquely useful in practice. When you need to validate an assumption, you can flip to the relevant section and find an experiment that fits your constraints. Need quick, cheap evidence? Pick a low-fidelity experiment. Need stronger validation before a big investment? Choose something more rigorous.
Bland brings deep practical experience from his work at Precoil, where he coaches teams through real validation cycles. Osterwalder contributes the strategic framing that connects individual experiments to the bigger picture of business model design.
What to Expect
At 368 pages with full-color visual design, this is both a reference book and an engaging read. The Strategyzer visual style makes complex concepts accessible and scannable. You do not need to have read “Business Model Generation” or “Value Proposition Design” first, though familiarity with those frameworks adds context. This is the book you will keep on your desk and reach for every time you need to plan a validation sprint.