UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K [X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 30, 2018 OR For the transition period from _________ to __________ Commission file number 0-1088 KELLY SERVICES, INC. (Exact Name of Registrant as specified in its Charter) Delaware 38-1510762 (State or other jurisdiction of (IRS Employer Identification Number) incorporation or organization) 999 West Big ...