Globular cluster systems

I have found this peice to be very enlightining. It is fairly comprehensive and is well written. It delves in depth into one of the most amazing facets of the universe. Globulars are not only beautiful and amazing to behold but are probaply one of the most curious objects in the universe. This work explores most of the recient research on globulars and tries to make sence of it all. I would recommend it to any one interested in this aspect of Astronomy.It is fairly technical and does require background in stastics and at least be an intermediate astronomer.