Cuno Hoffmeister, who prior
to his death in 1968 was director of the Sonneberg Observatory in the German
Democratic Republic, was long regarded as one of the world's leading
astronomers specializing in variable star research. The "Mitteilungen źber
VerŠnderliche Sterne (MVS)", published by the observatory, is a primary
reference for variable star discovery, identification, and photometric
investigation. One of Hoffmeister's last projects was the writing of the
present book, which was posthumously prepared for publication by his
associates, G. Richter and W. Wenzel.