Lee Harris will join Tor.com's new novella imprint later this summer as senior editor. He was formerly senior editor at Angry Robot.

Little, Brown Books for Young Readers has two new hires. Jane Lee has been named associate manager of digital marketing and social media; she was previously online marketing associate at Grand Central. Svetlana Keselman has been named subsidiary rights associate; she was previously subsidiary rights associate in Hachette Book Group's adult rights group.

Andrea Brown Literary Agency has three promotions. Laura Rennert has been named executive agent; she was formerly senior agent. Jennifer Laughran has been named senior agent; she was formerly agent. Jennifer Mattson has been named agent; she was formerly associate agent.

Stephanie McKinley has been promoted to digital marketing associate at Macmillan Children's Publishing Group; she was previously digital marketing assistant.

Stephanie Hoover has joined HarperCollins Children's Books as associate publicist. She was previously an assistant at the Trident Media Group, where she worked on middle grade and YA titles including R.J. Palacio's Wonder.

Scholastic's trade publishing division has two new hires and several promotions. Stacy Lellos has been named senior v-p and general manager for Klutz, reporting to president Ellie Berger. She was most recently v-p of marketing at Toys R Us, and had previously held a variety of publishing and marketing positions at Scholastic. Sara Ortiz is joining the company as marketing manager, education/library marketing; she was formerly assistant manager, school and library marketing at Penguin. Lizette Serrano has been promoted to director of education/library marketing and conventions. She was previously director of conventions/author programs. She succeeds John Mason, who is retiring after 28 years at Scholastic and more than 43 years in publishing. Samantha Schutz has been promoted to associate publisher, licensing and nonfiction; she was previously editorial director, licensing. Sheila Marie Everett has been promoted to associate director of publicity; she was previously publicity manager. Becky Amsel has been promoted to publicity manager; she was previously senior publicist.

Emilia Rhodes has joined HarperCollins Children's Books as senior editor, and will work on the HarperTeen imprint. Previously she was an editor at Alloy Entertainment.

Bronwen Bennie, rights director at Random House Children's Publishing in the U.K., is leaving the company after 21 years. Her last day is June 13, and she can be reached here.

Kayla Ferriera has joined Chronicle Children's Books as junior designer. She was previously a freelance designer for Chronicle.

Heather Alexander is joining Pippin Properties as a literary agent. Most recently she was associate editor at Dial Books for Young Readers; authors and illustrators she has worked with include Anne C. Voorhoeve, Jeanne Ryan, Henry Cole, and Sophie Blackall