POWER OF ATTORNEY


	Know all by these presents, that the undersigned hereby constitutes and
appoints each of Christie A. Hill (Chief Legal Officer), Richard S. Mattessich
(Assistant Corporate Secretary), Kristin R. Kaldor (Corporate Secretary) and
Karen K. Pettiford-Wilson (Senior Paralegal) signing singly, as his or her true
and lawful attorney-in-fact to:

(1)	execute for and on behalf of the undersigned Forms 3, 4 and 5, as a result
of the undersigned's ownership of or transactions in securities of The Dun &
Bradstreet Corporation, in accordance with Section 16(a) of the Securities
Exchange Act of 1934 and the rules thereunder; and

(2)	do and perform any and all acts for and on behalf of the undersigned which
may be necessary or desirable to complete, execute and file any such Form 3, 4
or 5 with the United States Securities and Exchange Commission and any other
authority.

	The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform all and every act and thing whatsoever requisite,
necessary and proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or his or her
substitute or substitutes, shall lawfully do or cause to be done by virtue of
this Power of Attorney and the rights and powers herein granted.  The authority
under this Power of Attorney shall continue until the undersigned is no longer
required to file Forms 3, 4 and 5 with regard to the undersigned's ownership of
or transactions in securities of The Dun & Bradstreet Corporation, unless
earlier revoked in writing.  The undersigned hereby ratifies and approves of the
filings of any Forms 3, 4 and 5 bearing the signature of any of the
aforementioned attorneys-in-fact prior to the date set forth below.  The
undersigned acknowledges that the foregoing attorneys-in-fact, in serving in
such capacity at the request of the undersigned, are not assuming any of the
undersigned's responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934.

	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 27th day of July, 2015.



/s/ Cynthia K. Christy
Signature

Cynthia K. Christy
Print Name