Introduction to the movement/school of thought/philosophy (suggest me the foundational texts?)

I've been browsing this website since the past few days (I just found out about this website and the movement/philosophy as a whole, although I had a vague idea of what it was) read a few texts but mostly i feel like i need to have knowledge of the fundamental ideas and themes so that i can fully understand the texts here, can someone please suggest me (like a list maybe) texts that'll familiarize me with the basic concepts? I don't know why but I really don't want to search for foundational texts outside of this site, I'd love to build an ebook and read it on my kindle, thanks in advance : )