Richard Koch has written at least 24 books. Their most popular book is The 80/20 Principle with 101 saves with an average rating of 3.77⭐.
101 Readers • 3.8
1997 • 5 Readers • 3.3
1997 • 5 Readers • 2.5
2004 • 5 Readers • 198 pages • 4
1997 • 3 Readers • 290 pages
2016 • 3 Readers • 307 pages • 4
2010 • 2 Readers • 3
2008 • 2 Readers
2010 • 2 Readers
2013 • 2 Readers
1 Reader • 3
2020 • 1 Reader • 240 pages • 3
2002 • 1 Reader • 258 pages • 4
1997 • 1 Reader
1997 • 1 Reader • 347 pages
2013 • 1 Reader • 403 pages • 4
1 Reader
1 Reader • 4
2004 • 1 Reader • 228 pages • 4
2012 • 1 Reader • 288 pages
1924 • 116 pages
2015 • 338 pages
2011 • 142 pages
2013
2002 • 243 pages