Exhibit 23.4

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Registration Statement on Form S-4 of our reports dated February 25, 2015, relating to the consolidated financial statements of R.R. Donnelley & Sons Company and subsidiaries (the “Company”) and the effectiveness of the Company’s internal control over financial reporting, appearing in the Annual Report on Form 10-K of R.R. Donnelley & Sons Company and subsidiaries for the year ended December 31, 2014, and to the reference to us under the heading “Experts” in the Proxy Statement/Prospectus, which is part of this Registration Statement.

/s/ Deloitte & Touche LLP

Chicago, Illinois

March 23, 2015