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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001181431-06-020057.txt : 20060327
<SEC-HEADER>0001181431-06-020057.hdr.sgml : 20060327
<ACCEPTANCE-DATETIME>20060327182558
ACCESSION NUMBER:		0001181431-06-020057
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050526
FILED AS OF DATE:		20060327
DATE AS OF CHANGE:		20060327

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RR Donnelley & Sons Co
		CENTRAL INDEX KEY:			0000029669
		STANDARD INDUSTRIAL CLASSIFICATION:	COMMERCIAL PRINTING [2750]
		IRS NUMBER:				361004130
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		111 SOUTH WACKER DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		3123268000

	MAIL ADDRESS:	
		STREET 1:		111 SOUTH WACKER DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DONNELLEY R R & SONS CO
		DATE OF NAME CHANGE:	19920703

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SOCKWELL OLIVER R
		CENTRAL INDEX KEY:			0001187703

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-04694
		FILM NUMBER:		06712974

	BUSINESS ADDRESS:	
		STREET 1:		C/O MONICA FOHRMAN CORPORATE SEC
		STREET 2:		77 W WACKER DR
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60601
		BUSINESS PHONE:		3123268000

	MAIL ADDRESS:	
		STREET 1:		C/O MONICA FOHRMAN CORPORATE SEC
		STREET 2:		77 WEST WACKER DR
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60601
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd112035.xml
<DESCRIPTION>FORM 4-  SOCKWELL
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-05-26</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000029669</issuerCik>
        <issuerName>RR Donnelley &amp; Sons Co</issuerName>
        <issuerTradingSymbol>RRD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001187703</rptOwnerCik>
            <rptOwnerName>SOCKWELL OLIVER R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RR DONNELLEY, CORP SEC.</rptOwnerStreet1>
            <rptOwnerStreet2>77 WEST WACKER DRIVE</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60601</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2005-05-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5457.8532</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                    <footnoteId id="F3"/>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5457.8532</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5941.5745</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">One restricted stock unit is equal to one share of common stock.</footnote>
        <footnote id="F2">One third of the restricted stock units are payable in shares of common stock or cash on the third anniversary of the grant date or, at the election of the reporting person, when the reporting person ceases to be a director and the other two thirds are payable in shares of common stock or cash when the reporting person ceases to be a director.</footnote>
        <footnote id="F3">Common Stock, and rights to purchase Series A Junior Participating Preferred Stock attached thereto.</footnote>
        <footnote id="F4">Company granted restricted stock units issued pursuant to Rule 16b-3 Plan.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Jennifer Reiners, pursuant to Power of Attorney</signatureName>
        <signatureDate>2006-03-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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