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Nayden Kostov
Nayden KostovNayden Kostov was born in Bulgaria, and he’s lived in places such as Belgium, Germany, and Iraq, before he settled down in Luxembourg with his family.
9 Books
0 Series
Publication Order
Standalone Books
1123 Hard to Believe Facts
2016
Which is NOT True?: The Quiz Book
2016
Fascinating Facts for the Whole Family: Trivia about Human Body and Cute Animals
2017
853 Hard to Believe Facts
2018
523 Hard to Believe Facts
2019
323 Disturbing Facts about Our World: Shocking, Ironic or Simply Sad Pieces of Trivia
2020
463 Hard to Believe Facts: Better Explained, Counterintuitive and Fun Trivia
2021
A Question a Day Keeps the Boredom Away
2022
373 Mind-Boggling Facts and Questions from the Puzzle Vault
2024