Who HQ is a publishing series known for crafting educational and informative titles aimed at younger readers. The series encompasses a broad array of topics covering influential figures, pivotal historical events, and significant cultural phenomena. Who HQ books are highly regarded for their engaging narrative style and are often included in educational curriculums to provide context and depth to history and biographies. Their series include 'Who Was?', 'What Was?', and 'Where Is?', each offering clear, concise explanations tailored for accessible learning.

These books often feature illustrations, timelines, and other educational resources that complement the text, making them appealing to their target audience. Regularly recognized for their contribution to educational literature, Who HQ serves as a valuable resource for teachers, parents, and children alike.

The 'Who HQ' series is published by Penguin Workshop, an imprint of Penguin Random House. The brand has grown significantly since its inception, reflecting its popularity and impact in the sector of children's educational literature.