Pa Auk Sayadaw and his work "Knowing and Seeing". A text that details samatha (deep access concentration and the jhanas) as well as a variety of vipassana techniques. Considered the prized text of the Pa Auk Forest Monastery in southern Burma.
You may find this book helpful:Wisdom Wide and Deep: A Practical Handbook for Mastering Jhana and Vipassana
By Shaila Catherinehttp://imsb.org/books/wwd.php
It is essentially a commentary on Pa Auk Sayadaws commentary.
In sitting meditation stay with that ‘which knows’ everything. Don’t try to go to objects. Let the objects come to you. Try not to react to objects. Whatever arises — greed, aversion, pain, itchiness, metta, likes or dislikes etc. — watch with equanimity, without getting involved, without clinging to it. Stay in the middle path.- Shwe Oo Min Sayadaw