A series of personalized travel books for children launched around 2017, sweepingly taking kids on "adventures" through cities like London.
While the Geometry Olympiad is the most prominent "iGO 2017," the term also appeared in other niche contexts during that year: iGO 2017
The "iGO 2017" likely refers to the , an international mathematics competition held on September 7, 2017. The Story of IGO 2017 A series of personalized travel books for children