This volume, which results from the dramatic increase in interest in the control mechanism employed in gene expression and the importance of the regulated proteins, presents new information not covered in the 1987 Translational Regulation of Gene Expression , being an extension of that volume with special emphasis on mechanisms. It describes mechanisms of translational regulation in bacteria, yeast, and eukaryotic viruses, as well as in eukaryotic genes. The thrust is toward depth of coverage, with important examples from each group included, rather than all additional systems not described in the previous volume. Annotation copyright Book News, Inc. Portland, Or.