Dr. David Alexander's book The Sun is published as part of the Greenwood guides to the Universe series. The book was published on May 20, 2009. Below is a description of the book from the Greenwood Press website.

Our knowledge of the universe has increased tremendously over the last century, and our discoveries are not over - there remain scientific mysteries that the next generation of astronomers and planetary scientists will need to solve. This volume in the Greenwood Guides to the Universe series covers the Sun, and provides readers with the most up-to-date understanding of the current state of scientific knowledge. Scientifically sound, but written with the student in mind, The Sun is an excellent first step for researching the exciting scientific discoveries of the star at the center of our solar system.