If you are looking for "unusual" children's books that are actually intended for kids but push the boundaries of traditional storytelling, here are some top recommendations based on recent unconventional literature lists: Satirical & Dark Comedy (Adult-Oriented)
The Tonkato name is not that of a famous publisher, but rather an archaic digital signature—an internet username. The collection was allegedly compiled and distributed by a user (or group) known as "Tonkato" on early file-sharing platforms, torrent sites, and obscure forums dedicated to out-of-print literature. tonkato unusual childrens books top
Why it's unusual: The book is printed entirely in ultraviolet ink. To read it, you need a blacklight. When you shine the light, the pages reveal creatures that look like the after-images of a sneeze. If you are looking for "unusual" children's books
Wren and the Library of Whispering Things — Objects that tell secrets if you listen closely. Why: encourages close-reading and observation skills