The BAF main website lists two med books so easy to read... by terminology and pages...
the overviews for patients and families:
Brain Aneurysms and Vascular Malformations by Eric S. Nussbaum, MD
ISBN: 0-7388-3759-8 softcover
The Brain Aneurysm by Vini G. Khurana, MD, PhD and Robert F. Spetzler, MD, FACS
ISBN: 978-1-4259--5707-0 softcover
There are a lot of other books listed on that main website page.
Hope those above may be so helpful to new members and their families.