The first edition, Shale Shakers and Drilling Fluid Systems, was only on shale shakers. The original book has been much expanded to include many other aspects of drilling solids control, including chapters on drilling fluids, cut-point curves, mud cleaners, and many other pieces of equipment that were not covered in the original book. Drilling engineers and derrick men, from the largest integrated oil companies, like Shell and Exxon, to the smaller drilling and service companies, like Mustang, need the information in this book out on the rig and in the office. Much of this material has, until now, only been available to the engineer through word of mouth, tradition, or in an internal company manual.