He will take time off from advertising, to pursue his interest in writing and to finish his novel.
Gaxiola joined Ogilvy & Mather Singapore in 2009 as interim executive creative director for six months initially, but stayed on for two years instead.
Most recently, his work for Faber Castell picked up the prestigious D&AD Yellow Pencil.
Prior to the appointment in Ogilvy, he was with Goodby, Silverstein and Partners in San Francisco as senior writer.
Earlier, he was also the executive creative director at Bates Advertising and Foote, Cone & Belding; as well as the copywriter at Young & Rubicam Advertising.
Eugene Cheong, regional creative director at Ogilvy & Mather Asia Pacific, said, “During Rob's tenure, the Singapore creative department won a truckload of accolades. He is leaving the agency a lot stronger than he found it. Now, he's off to write his book. I look forward to working with him again after he becomes a published author.”