In this chapter we explore communication and learning in the contemporary social world. Taking the textbook as a 'case study' we identify changes in multimodal text making – in the use of writing, image, layout and typography – and highlight their social pedagogic significance. The theoretical frame of our account is social semiotics. Drawing on a corpus of English, Science and Maths textbooks and digital learning resources published between 1930 and now we render visible profound shifts in the semiotic landscape of education. Teachers and designers of learning resources have always drawn on a range of different 'modes'-‐ writing and image foremost among them, yet a combination of social change and new technologies have given rise to the possibilities for an increase in the use of more modes than these, in new 'ensembles' of modes, and with differently distributed functions. The chapter explores what the implications of these changes are for what and how students learn.