Botswana presents a development paradox that is easily obscured by headline education indicators. The country has achieved broad access to schooling and a high conventional adult literacy rate, yet the available direct evidence shows substantial weaknesses in reading proficiency, uneven comprehension, and persistent inequalities in the conditions under which children learn to read. More importantly, Botswana's strongest internationally comparable reading evidence remains anchored in the 2011 Progress in International Reading Literacy Study (PIRLS), creating a serious gap between the policy importance of reading and the timeliness of the evidence used to manage it. This article synthesises 84 peer-reviewed studies, including 40 Botswana-focused studies, together with national statistics and major policy and assessment reports. Rather than treating language, pedagogy, books, household practices, inclusion and assessment as separate problems, the review shows that they form a connected reading-production system. Across more than three decades, Botswana research repeatedly identifies similar constraints: weak or uneven explicit reading instruction; complex transitions among home languages, Setswana and English; limited access to varied reading materials; insufficient teacher preparation for comprehension and diagnostic assessment; and weak use of learning data for instructional improvement. The persistence of these findings suggests an implementation and coordination problem, not merely a shortage of diagnosis. The article advances three contributions: a Reading Capability perspective that distinguishes basic literacy from the capacity to learn through text; a Measurement-Lag proposition that treats stale learning evidence as a governance failure; and a Botswana National Reading Capability Compact that links early assessment, multilingual instructional design, teacher expertise, text access, family and community reading, catch-up support and public accountability. The central argument is that reading should be governed as national development infrastructure because it determines how effectively schooling is converted into human capital, productivity, technological participation and informed citizenship.