news you need to know Dedicated to education and industry service Feature Story 32 In this issue... 62 By the Book: NTCA Reference Manual now addresses stone discoloration in wet areas 70 Qualified Labor: At Artistic Tile CTI event, teamwork with association and hosts create smashing success 78 Special Section: NTCA Celebrates 70 years 110 NTCA University Update: Building a better tile setter training process By Dan Welch, president, Welch Tile & Marble feature story MAPEI Corporation Jerome L. Greene Neuroscience Center: building for scientific progress MAPEI products used at award-winning project tileletter.com ONLINE NOW 78 26 62 70 September 2017 2 TileLetter | September 2017