A niche market refers to a focused, targetable portion of the children's book industry that caters to unique interests or demographics. For example, this could include books designed for particular age groups, addressing specialized themes such as diversity, environmental issues, or specific learning challenges. Niche markets allow publishers and authors to tailor their content to meet the needs and preferences of specific audiences, helping them connect more deeply with their readers. Understanding niche markets can drive effective marketing and lead to more meaningful reader engagement.