The Sound of Silence by Ajahn Sumedho.
This book transcends sects within Buddhism, and even transcends history. Its simple, its about Sumedho's experience right now- and yours and mine. The book is gentle, not about views and opinions. Its about awareness. Its like having a wise grandparent just encouraging you, moment to monent, to take note. It doesn't agree nor disagree with your opinions.
Each chapter seems to be a transcript of an actual talk by Sumedho.
I can't write a review here that would do it justice so all I can do is encourage you to read it.
Let me know if you liked it.