IAU Symposium No. 167 brought together researchers who use CCDs and arrays, designers and manufacturers of CCDs and Array Mosaics and those who write the software to control these devices and to reduce the large amounts of data contained in each frame.
At the meeting such topics as plans for applying the new technology to the new large telescopes that have been built recently and those planned in the near future, new developments in infrared arrays, advances and concerns with the use of CCDs in photometry and spectroscopy and the creation of large mosaics in photometry and spectroscopy...

The stars that comprise a halo around our Galaxy are intriguing; they have abundances of elements that suggest they are old. The properties of these "hot stars" and similar stars in other galaxies challenge the current, well-established theory of stellar evolution in many ways. In this book, experts contribute up-to-date and comprehensive reviews of the major topics in the field. They study the collective properties of these stars that provide important revelations for many areas of astrophysics--including how our Galaxy was formed. The contributors also reveal the exciting renaissance...