20+books purchased
New Book
Stock Picker
How to develop the mindset, temperament, and strategy to outperform Wall Street.
By Ian Cassel · Available September 2026
Part personal journey, part manifesto for financial independence
Ian Cassel has never had a normal job, never worked for a big firm, and sometimes struggles to even screw in a lightbulb. But give him a list of a thousand small stocks and he can pick out the next winners.
Stock Picker is a collection of lessons learned while chasing greatness in stock picking. You'll discover why investing is less about beating others and more about buying freedom for yourself.
Through luck, failure, discipline, and reinvention, Cassel built a career — first as a full-time private investor, and now as a fund manager. His story proves you don't need billions or Wall Street prestige, just enough capital, conviction, and patience to live life on your own terms.
What You'll Learn
Mindset
Why investing is less about beating others and more about buying freedom for yourself
Strategy
How to find, research, and invest in the smallest public companies in the world
Temperament
Controlling your emotions when 49% of your best ideas will be losers
Survival
Adapting and evolving as a stock picker across market cycles
Finding Winners
The skills of sourcing, due diligence, buying, holding, and selling
Financial Independence
Building a career on your own terms without Wall Street prestige
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What investors are saying
Ian Cassel is an excellent investor and offers us a detailed dive into a lifelong curiosity and obsession with his craft. Stock Picker is lively and highly rewarding.
Ian has a compelling personal story to tell and plenty of hard-won wisdom to share. If you ever wanted to be a stockpicker, Ian's book is the best headstart you can ask for. Full of practical investing advice, but there is much more than that. This book is a meditation on risk, temperament, and independence.
Ian has invested alongside me for 20 years. In Stock Picker, he retells his personal and investing journey from “eat what you kill” trader to value added investor. Investors will gain significant value from reading this book.
In Stock Picker, Ian distils the hard-earned lessons of his journey as a microcap investor into a highly readable and deeply thoughtful book. I recommend it warmly to anyone serious about developing the mindset and temperament required to be a successful stock picker.
Few investment books show you how to find an edge hiding in plain sight, this one does.
Stock Picker is a must read for anyone that wants to learn the art of execution and be a successful investor in microcaps. It's a memoir of a successful microcap investor whose success stems from being a Connoisseur when winning, and transforming from being a Rabbit to an Assassin when losing. I highly recommend this book to all investors.
Stock picking is a temperament game disguised as a numbers game. Ian Cassel has lived it, and this book shows you how to build an edge that actually lasts.
Ian Cassel's journey from teenage investor to full-time microcap specialist is a story of conviction, resilience, and independent thinking. In Stock Picker, he blends personal experience with hard-earned lessons on temperament, discipline, and the psychology of concentrated investing. His arguments provide a challenge to both aspiring investors and seasoned market participants, to think differently about risk, opportunity, and what it truly takes to build conviction in an uncertain world.
Begin your journey to financial freedom
Stock Picker is available for pre-order now. Get Ian's 20+ years of lessons learned in one book.
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