https://wiki.kidzsearch.com/wiki/Nico_di_Angelo is a kid-friendly Wikipedia page providing all sorts of facts and information revolving around Nico di Angelo. It pulls together connections and explanations for us to dive into Nico's character, and site the books.
Due to this page being more uncommon than the official Wikipedia or fandom Wikipedia page(s), it has slightly separate information, and is more accurate (since not as many people are trying to edit it).