At Houghton Mifflin Harcourt:
Laurie Brown, senior v-p of sales and marketing, is becoming senior v-p, associate trade group publisher and business development.
Maire Gorman, v-p sales and children's marketing, is becoming senior v-p, sales.
Adriana Rizzo is joining the Trade Publishing Group as v-p, marketing. She was formerly senior director, marketing, at ESPN, where she spearheaded initiatives for digital and mobile products. Before that, she led consumer marketing teams at Verizon and mobile start-ups SNAC, Inc., and Digicel Mobile.
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Theresa Collier is joining Artisan as senior publicist & associate marketing manager. She was formerly a publicist at Bloomsbury.