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—Third Edition
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—Third Edition has all 10 numerals, you have the
first printing and you will need both errata sheets.

10 9 8 7 6 5 4 3 2 1 (needs first errata sheet and second errata sheet)

10 9 8 7 6 5 4 3 2 (needs second errata sheet)

10 9 8 7 6 5 4 3 (needs second errata sheet)

10 9 8 7 6 5 4 (needs second errata sheet)

10 9 8 7 6 5 (needs second errata sheet)