Hey,
I decided that I want to expand my consciousness by going further into developing my Astral Senses, There are countless videos online about this topic but they are rather vague.
I wanted to ask if you happen to know a great book that offers exercises and techniques to further develop the astral senses?
Thank you in advance 
Summoning Spirits by Konstantinos
Initiation Into Hermetics by Franz Bardon
Works of Darkness by EA Koetting
The Mastering Evocation course by EA Koetting.
All solid suggestions from DK, I feel Astral Dynamics by Robert Bruce warrants a mention as well, as it teaches some energy manipulation techniques as well. Very handy book on the matter of things pertaining to the astral plane.
Thank you very much