K-12 Textbook Market: By Type (Printed Textbooks and Digital Textbooks); School Level (Primary (K-5), Secondary (K6-8), Upper Secondary (K9-12)); End Users (Individuals (Home Schooling), Educational Institutes); Distribution Channel (Offline (Specialty Store), and Online E-Marketplace and Brand Websites)); Region—Market Size, Industry Dynamics, Opportunity Analysis and Forecast for 2025–2033