Playground →
Two education media properties sit at nearly identical heights in Heinemann Publishing's top 10: MindShift at 0.89 and Edutopia at 0.89, forming a tight dual peak that gives this audience its two-peak shape. The gap between those leaders and the rest of the set is real but not dramatic — ASCD follows at 0.87, Education Week Teacher at 0.86, and Google for Education at 0.84 — which means the two-peak structure reflects a near-tie at the top rather than two isolated clusters.
Across all 10 neighbors, the subcategory distribution is strikingly uniform: four are Education organizations or brands (Edutopia, ASCD, Discovery Education, TED-Ed), two are Websites (Education Week Teacher, TechLearning), two are Magazines (EdTech K-12 Magazine, Education Week), one is a Blog (MindShift), and one is Tools and Resources (Google for Education). Every neighbor is an education-sector entity — no other Book Publisher appears in the top 10, and the audience shape is defined entirely by the professional educator media ecosystem rather than by publishing peers. The center entity's own subcategory (Book Publishers) has zero representatives among the top 10 neighbors.
This pattern indicates an audience whose composition is shaped by professional development and classroom-practice media, not by publishing category affiliation.
