Commercial middle-grade stories with a tight scope and big feelings, voice-driven narratives.
Rhyming picture books, aliens, AI/tech-heavy, cryptids, didactic PBs with forced message, religious themes/angels/demons, memoirs, pandemic stories, animal stories (unless PB), previously self-published.
Ashlee MacCallum joined Howland Literary after interning at Triada US. Originally from Glasgow, Scotland, she is passionate about championing marginalized creators and uplifting historically underrepresented voices. She gravitates toward high-concept, commercial fiction with bold storytelling, standout pacing, and a distinct voice that grabs readers from the first page.
At this time, I am open to submissions from picture book author/illustrators, graphic novel author/illustrators, illustrators, and middle grade only. I'm searching for illustrators who specialize in the following categories: Board Books, Picture Books, Chapter Books/Early Middle Grade, Graphic Novels.
Last verified: March 23, 2026
Focused Artists
Storm Literary Agency
BookEnds Literary Agency
Triada US