im not jewish but when i stumble across things about jewish culture, philosophy, history, and folklore, it seems really interesting! i occaisonally go on wiki dives abt it, but i worry that's not a good way of learning.
i sometimes poke at texts on sefaria.org but browsing them can be overwhelming in how Much there is. there is also a language barrier; lots of that site is hebrew-only. i also often lack context, ranging from things i'm used to working thru in other books, like not knowing terminology and having to go look it up, to more profound things, like not even understanding why something is being discussed at such lengths.
would you have reading rec's for someone who has a interest in jewish history, culture, etc, and wants to learn more? i don't necessarily need or want things for a non-jewish audience; i'm used to jumping into books a bit over my head and having to do side-resarch to understand terms. but anything a bit less intimidating than An Archive Of Thousands Of Years Of Jewish Texts In Hebrew would be appreciated (or alternately, particularly approachable parts of that archive)
When kids become bnei mitzvah at my shul we give them a copy of The Illustrated Pirkei Avot which is super accessible.
Another very popular and very accessible Jewish book at my shul is This is Real and You are Completely Unprepared which is an incredible book about the High Holidays that just kinda meanders around various anecdotes and stuff that are all really interesting. The High Holidays are very much the core of Judaism. Jews will identify as secular atheists and yet still attend shul on Yom Kippur.
I also recommend learning to read Hebrew! it's a lot easier than you'd expect. It might not help you understand Hebrew but knowing how to pronounce it and recognize common words helps a lot.