If Hekate is reaching out to you, she is probably not waiting, nor expecting you to have read all the material about her before hand like its a prerequisite. She will meet you where you are. She just might be reaching out to you before you pick up someone elses framework of her. Maybe other frameworks of her would just be mountains you and Hekate would have to climb over to have a meaningful encounter. Maybe, maybe not.
You could read about her, and in the meantime reach out to her via ritual (however you do rituals) and see what happens. Start paying attention. When you look outside, start to look between the branches, between the trees. Focus on the liminal spaces. This is not just good training, but it is also where Hekate resides, the liminal.
If it were me, I woulnt keep her waiting. I would reach out to her directly and see whats up. Maybe she has something to teach you that books wont.
There are a few members here who have worked directly with Hekate, hopefully they will chime in and point you in the right direction with books. I have had a few interactions with Hekate, but nothing long term. I didnt read all about her, nor did she seem upset that I hadn't (thank fuck, cause Im not a huge book worm lol).
Good luck!