Opis
Do You Know That Other People Don’t Exist? is the English edition of the book by Matija Zeljezic, Croatian author and founder of druginepostoje.com.
The book starts from a premise that sounds impossible and changes everything: other people do not exist as an independent factor you can fix. They exist as a reflection of what you carry inside. Your partner, your child, your boss, your friend — each of them responds to your inner state, not to the words you say.
That is why explaining, negotiating and giving in never work. You are working on the wrong end.
What changes after reading it
– You stop looking for someone to blame — and feel a freedom you haven’t felt in years.
– You recognise the patterns that have been repeating with different people, and you break them.
– Arguments, insults and unfairness stop running your day.
– You understand why other people mirror your inner state back to you.
– You get a concrete tool to stop a destructive emotion in a second.
– You let go of the need to change others — and in that moment, they change on their own.
Who it’s for
Anyone who keeps ending up in the same place with different people. It’s especially useful if you’ve already tried the standard advice about communication and compromise and nothing changed for good.
It assumes no background in psychology or spirituality. It starts from everyday situations anyone will recognise.
How it’s different
Most books on relationships teach you how to behave towards other people. This one starts from the opposite premise — the other person is a reflection, so the entire work happens on your side. That’s why the change is fast and doesn’t depend on anyone else’s consent.
How to order
This is the English edition and it’s ordered through Amazon, with delivery worldwide. The button above takes you straight to the book’s Amazon page.
If you’re in Croatia, the Croatian edition reaches you faster and cheaper — hardcover for 27 €, delivered in 2 to 3 working days, or a PDF edition for 13 € that arrives by email immediately. The Croatian edition is also available in Znanje bookstores across Croatia.
About the author
Matija Zeljezic is a Croatian author, the writer of Do You Know That Other People Don’t Exist? and the founder of druginepostoje.com, where he publishes on relationships, emotions, awareness and personal growth. He is also the author of the Transformation Music project.



