Historian Tamminen composed a small book of small stories of Finland from memories of Finnish people since its inception (1917): on each page, a few lines and the year at the bottom (side note: it is a perfect book for a learner of Finnish).
The country’s history fits into three generations and the book mostly tells childhood memories or fragments of family stories - daddy angry at the radio announcing reparations to be paid to Russia; the four-year-old hiding under the floor in one cache during the White vs Red civil war; children talking about the coming war in the school yard; another daddy angry at the radio announcing the results of a presidential election regarding the irremovable Kekkonen (UKK)…
These are the types of images passed down in family history: “Grand pa used to hide some weapons over there,” “Did you know I had to learn Finnish while living in Sweden because there were so many immigrants then that all the factory work was in Finnish!”, “Oh yeah, my friends and I had our first marbles when the American relief packages arrived through the Red Cross. We didn’t even know what to do with them, but we loved them!”; “Yeah, your uncle died because of an issue with that broken rib he had since he was born. Do you know a Russian soldier did that to him by hitting his pregnant mother?”; “I remember when Finland won the Eurovision, I was there.”

If you're interested in Finnish literature and the the people who shaped Finland, I can recommend Tuntematon sotilas (The Unknown Soldier) and Täällä Pohjantähden alla (Under the North Star), both by Väinö Linna. They are considered quintessential works of Finnish literature.
As for learning Finnish, Häräntappoase by Anna-Leena Härkönen might be worth looking into. It is a young adult novel from the 80s written in colloquial Finnish.
Yes, Tuntematon sotilas was a great read (in English though).
Thank you for the recommendation, I am just starting now to read actual books in Finnish, I am putting Häräntappoase on my list.