There are printing errors in PMBOK 4th edition that need corrections. This has been published by PMI.
Firstly you need to know your print run.
PMI pointed ut how to determine your print run:
“In order to determine the print run of your book, refer to the bottom of the copyright page (which precedes the Notice page and Table of Contents).You will see a descending numerical string of numbers beginning with 10.The first printing of the PMBOK® Guide will show the numerals 10 through 1.With each subsequent print run, the lowest numeral is removed from the string.Therefore, if your copy of the PMBOK® Guide has all 10 numerals, you have the first printing and you will need the errata sheet.
10 9 8 7 6 5 4 3 2 1(need the errata sheet)
10 9 8 7 6 5 4 3 2(do not need the errata sheet)”
The list of ERRATA is here: http://linkbee.com/BOKerrors
