I am looking to learn about the philosophy of Tibetan Buddhism. Does anyone know the proper order in which to learn the texts?
Incidentally, Palyul is my hometown monastery; when weather is good I meditate in their stupa park (not the real Palyul, a branch).

As Palyul is Nyingma, their main ngondro text is "The Words of My Perfect Teacher" by Dza Patrul Rinpoche, plus "A Guide to The Words of My Perfect Teacher" by Khenpo Ngawang Pelzang. Although these are considered "beginner" texts, if you study them carefully and do not rush, you will get much value. Especially the second one is very dense and actually not a beginner text at all.

If you feel like you are ready for a complete lamrim, Kangyur Rinpoche's commentary on Jigme Lingpa's Treasury of Precious Qualities, is a refresher text used by lamas getting ready for their final exams. It packs the whole teaching in one volume. (Volume 2 covers tantra but that's completely useless without a live teacher)