Super Coffee Shop CrosswordsHarvey Estes, Bob Klahn, Fred Piscop, Mel Rosen · First published 2014Open the Tome
Turning Research into Results - a Guide to Selecting the Right Performance SolutionsRichard E. Clarke, Fred Estes · First published 2008Open the Tome
Puzzles to Keep You Sharp (PUZZLES to Keep you SHARP, 4 Book in 1!)Mark Danna, Henry Hook, Harvey Estes, Olivia Carlton, Bob Klahn, Fred Piscop & Mel Rosen · First published 2004Open the Tome
Super 30-Minute CrosswordsHarvey Estes, Bob Klahn, Fred Piscop, Mel Rosen · First published 2003Open the Tome
