In the Penguin Random House Children's sales group:
Jacqueline Engel has been named v-p, group sales director, and director, field sales and business development, Penguin Young Readers.
Mark Santella has been promoted to v-p, group sales director, and director, mass merchandise sales, Random House Children's Books.
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At Simon & Schuster Children's Division:
Carolyn Swerdloff is being promoted to associate marketing director from assistant marketing director and will oversee the Aladdin Books, Simon Pulse, Simon Spotlight and Little Simon Imprints. She joined the company in 2010.
Teresa Ronquillo is being promoted to assistant marketing manager from marketing coordinator and will work on the Aladdin Books, Simon Pulse, Simon Spotlight and Little Simon Imprints. She joined the company in 2012.
Ksenia Winnicki has joined Simon & Schuster Children's as publicist. She was previously publicist Macmillan Children's and has also worked in digital marketing.