Variable stars are fascinating objects to observe; found all over the sky, they change in brightness over time and can be seen with even the most basic of equipment. Variable star astronomy is one field in which amateur astronomers can still make significant contributions to science and in this high[...]

It was a lucky twist of fate when in the early 1980's David Levy, a writer and amateur astronomer, joined up with the famous scientist Eugene Shoemaker and his wife, Carolyn, to search for comets from an observation post on Palomar Mountain in Southern California. Their collaboration would lead to t[...]

David Levy?s entertaining, well-researched book is aimed at the amateur enthusiast who likes to learn enjoyably. Beginning with advice on binoculars and telescopes, and how to observe the night sky effectively, the author goes on to describe thoroughly the field of variable star observation, a field[...]

This second edition of Social Injustice and Public Health is a comprehensive, up-to-date, evidence-based resource on the relationship of social injustice to many aspects of public health. With contributions from leading experts in public health, medicine, health, social sciences, and other fields, t[...]