Books are one of the most important inputs in student learning and are generally considered a cost-effective input for increasing the quality of primary education (Fredriksen et al., 2015). After salaries, which typically account for around 80 percent of spending on basic education in Sub-Saharan Africa, textbooks are in many countries the next largest area of recurring spending on basic education, accounting for 5-10 percent on average (ibid.). For textbooks to be beneficial for learning, they need to be appropriate to students' language needs, and teachers need to be adequately trained to utilize them (Glewwe, Kremer, and Moulin, 2009)
textbooks need to be utilized by teachers in class instead of simply being stored at school (Sabarwal, Evans, and Marshak, 2014). Where they are appropriately designed and utilized, however, providing textbooks has been found to be one of the most cost-effective inputs for learning at primary level (Michaelowa and Wechtler, 2006
McEwan, 2014). Despite their importance for learning, many countries in Sub-Saharan Africa struggle to deliver an adequate number of textbooks to students on time. Among 38 Sub-Saharan Africa countries, 21 had pupil-textbook ratios in reading and math higher than 1.5 in the period 2010-15, with 12 having very high ratios of three or more (Bashir et al., 2018). As education systems have grown rapidly across Sub-Saharan Africa in response to the introduction of free education policies, governments have found it increasingly difficult and expensive to ensure that every student has the books they need to learn.