Celine Nadolny: The Science Behind a Great Finance Book and How to Start Your Financial Journey

Have you ever felt overwhelmed by personal finance? You're not alone. Celine Nadolny, the Forbes "30 Under 30" honoree and founder of the influential blog Book of Finance, started her journey with the same curiosity and a single book. In this interview, she shares how she turned a passion for reading into a career as a trusted financial literacy advocate, what she looks for in a great finance book, and why taking the first step is the most important part of your wealth-building journey.

The Spark: How a Single Book Ignited a Passion for Financial Literacy

Q: You've specialized as a blogger reviewing books on business, investing, and finance. How did you get started? What sparked your interest in finance?

A: It was actually a book—how fitting—that opened my eyes over ten years ago and ignited my interest in finance. During an internship when I was 16, I received my first finance book as a gift: Rich Dad Poor Dad by Robert T. Kiyosaki.

I had always read a lot, but never non-fiction. In my first finance book, I suddenly read about investments, stocks, real estate, and financial freedom—topics I had learned absolutely nothing about in school. My curiosity was piqued, and one book followed another.

A realization quickly set in: we all have to deal with our finances at some point, whether we want to or not. The longer we wait, the more unpleasant the topic becomes.

The idea to blog about non-fiction books on these topics arose from a personal need. I kept looking for new books to quench my thirst for knowledge and eventually couldn't find any. So, I decided to build exactly the platform I had always wished for myself.

Making Finance Accessible: Combating the "Boring" Stereotype

Q: …and what do you say to young people who say, "Finance—that's not for me! Too dry and boring"?

A: That's precisely the main goal of my blog, Book of Finance: to encourage more and more people to read and take away their fear of supposedly dry topics like finance, taxes, etc.

It may be that these topics don't sound particularly exciting at first, but if you give them a small chance, you'll quickly understand the possibilities that not only a solid financial foundation but also an understanding of the connections between entrepreneurship, finance, and taxes can offer in life.

For those who don't find the prospect of possible financial freedom or at least greater financial flexibility attractive enough, the certainty on the other side might help: especially young people are steering directly into old-age poverty if they don't act.

Building Book of Finance: Authenticity Over Strategy

Q: Did you have a strategy when you started as a finance blogger? What worked well—and where were there perhaps also resistances?

A: No, I didn't have a real strategy. I simply wanted to publish a broad range of book reviews, occasionally discuss passages from the books with my community, and thus share my passion for reading with others.

Only through detailed community feedback did the certainty come that people were interested not only in my book reviews but also in my opinion and expertise.

So, I began, piece by piece, to pass on my knowledge from the now over 700 non-fiction books I've read alongside my reviews, and that hit such fertile ground that my blog then skyrocketed.

Precisely the rapid success, my age, my gender, and my appearance have, of course, repeatedly caused resistance. My honest approach towards the abysses of the finance industry—even within the finance blogging scene—hasn't exactly won me many friends. But that was never my motivation anyway. From the beginning, it was clear to me that as a non-fiction critic, you will encounter displeasure. I simply always want to be authentic and will never let anyone silence me just because I point out grievances or don't conform to societal norms.

The Hallmarks of a Great Finance Book: Science Over Opinion

Q: You have read more than 700 non-fiction books. What, in your view, makes a good book about finance? Can you identify patterns/common characteristics in your favorites?

A: For me, a good finance book must have one thing above all: a scientific foundation for all relevant statements. Almost nothing bothers me more in the industry than all these works that merely reproduce personal opinions but are sometimes completely contrary to studies published decades ago. Large parts of the finance industry are unfortunately built on this absurd principle that every professional opinion should be heard, even if it is proven nonsense year after year by first-semester students in their seminar papers.

Anyone who has dealt more intensively with the financial market should know that emotions and personal preferences will hardly lead to better results. And yet countless supposed financial experts always base their statements on this.

To return to the characteristics of a good finance book, it should also fulfill the typical objective criteria: clean typesetting without major linguistic deficiencies, solid binding, paper, and print quality.

Additionally—and this must be emphasized more clearly today than ever before—a book should be written primarily for one reason: to impart knowledge. And not to stage oneself, generate leads, or build an expert status.

Furthermore, I look at the linguistic and content design in relation to the target audience. Is there a common thread, are all relevant topic areas touched upon and in sufficient depth, at what level does the author move linguistically, how are the contents conveyed, are there also aids like short summaries, checklists, visual highlights, graphics, and diagrams, etc.

Building Expertise: Self-Education and Real-World Testing

Q: You also give financial tips. Is this knowledge from the books? Do you cooperate with partners and product providers for this?

A: For the most part, I am actually self-taught. I had to acquire my knowledge myself because I didn't get it taught at home, in school, or even at university. The over 700 non-fiction books are the largest part of my foundation. But of course, countless personal experiences are added, because I have always tested the approaches from the books myself in practice and have burned my fingers more than once.

My studies and the founding of my own companies have certainly also contributed their part to my knowledge, as have the many conversations with authors.

Partners and product providers in the finance blogging industry should not be considered knowledge givers. Their knowledge transfer is limited at most to briefing and information in the style of press releases. As a blogger, I naturally work with a whole host of companies, but I always ensure that my freedom of expression is not restricted and that they are products and services that I fully stand behind and, ideally, have been using myself for years.

Reaching a Diverse Audience: Staying True to Your Voice

Q: Who is actually the target audience for your financial tips? Are you addressing young people?

A: I don't really have a fixed target group for my tips. I simply communicate in my own way and then see who I reach with it. I don't pretend and don't try to anticipate what some social media platform's algorithm might like, but remain true to myself.

According to my insights, I reach people primarily between 20-40 years old on Instagram and between 30-50 years old on LinkedIn, with a 60:40 split between men and women.

Nevertheless, there are also some outliers above and below, but the essential part of my community moves within this framework. On one hand, these are often people who are having their first points of contact with the topic, but on the other hand, also people who want to further optimize themselves and are looking for impulses.

Read Part 2 of the interview with Celine Nadolny on Tuesday at Versicherungsbote. Questions by Mirko Wenig.

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