Christian Trimmer has been named senior editor at Simon & Schuster Books for Young Readers; he will join the company on April 15. He was formerly senior editor at the Disney Book Group, where he worked with Mo Willems, Rick Riordan, Eoin Colfer, and Melissa de la Cruz, among other authors.

Pam Gruber has been promoted to associate editor at Little, Brown Books for Young Readers. She was formerly assistant editor, and works with both the Poppy and LBYR imprints.

Highlights has several new hires. Dave Bolen has joined Highlights Press as director of sales; he previously worked for Simon & Schuster, Levy Entertainment, and Sourcebooks. He will be based out of his home office in Michigan. Mary Colgan has joined in the newly created position of senior editor at Highlights Press. She began her career as an intern and editorial assistant at Highlights, and then worked at Weldon Owen Publishers and Chronicle Books, where she acquired the picture book Goodnight, Goodnight, Construction Site. She will be based at the Highlights editorial offices in Honesdale, Pa. Sarah Zhang has joined Boyds Mills Press as assistant editor; she was previously editorial assistant at Grosset and Dunlap. Tessia Bekelja and Brittany Ryan have been named editorial interns in the book group.

Jessica Shoffel has been promoted to senior publicist at the Penguin Young Readers Group. She joined the company in 2011 and was most recently publicist.

Pamela Paul, children's book editor of the New York Times Book Review, has been named editor of the book review. She replaces Sam Tanenhaus, who is stepping down to become writer-at-large for the paper.

Bonnie Bader has been promoted to associate publisher of Frederick Warne, part of the Penguin Young Readers Group. She was previously editor-in-chief, and has been with the company since 2001. She will continue her responsibilities as editor-in-chief of Penguin's Early Readers program.

Emily Mitchell will join the Wernick & Pratt Agency as an agent, beginning May 6. Emily had previously worked with agents Marcia Wernick and Linda Pratt at the Sheldon Fogelman Agency, and then left for Charlesbridge. She will be working from a home office in Bedford, Mass.

Julie Just is joining Pippin Properties as a literary agent on May 1. She was an agent with Janklow & Nesbit, and before that she worked at the New York Times for 16 years, most recently as children's books editor of the Book Review.

Sarah Jane Abbott has joined Simon and Schuster Children's Publishing as publicity assistant.

Egmont USA has a new hire and two promotions. Margaret Coffee has joined as sales and marketing director. She has more than 25 years of experience in publishing, most recently as vp of sales at Albert Whitman, and prior to that, as director of field sales for Scholastic, where she held numerous sales roles during her 16 years with the company. Katie Halata is now sales and marketing manager; she had been marketing manager. And Alison Weiss has been promoted to associate editor from assistant editor.

Simon & Schuster Children's Publishing has announced four promotions. Nicole Russo has been promoted to deputy publicity director; she was previously associate director of publicity. The authors she has worked with include Cassandra Clare, Ellen Hopkins, Lisa McMann, Cynthia Kodohata, Hilary Duff, and Paula Deen. Lydia Finn has been promoted to publicist, from associate publicist. Among the authors she has worked with: Rachel Renée Russell, Neal Shusterman, Sharon Draper, Jenny Han, and Dr. Jill Biden. Christina Abram has been promoted to senior production manager, overseeing Little Simon, Simon Spotlight, and product development; she was formerly production manager. Rodd Bailey has been promoted to production manager for children’s reprints; he was previously production supervisor.