diff --git a/09-mapping.Rmd b/09-mapping.Rmd
index fc192dbd6..6697de64d 100644
--- a/09-mapping.Rmd
+++ b/09-mapping.Rmd
@@ -60,7 +60,7 @@ Furthermore, poor map-making can hinder the communication of results [@brewer_de
 Maps have been used for several thousand years for a wide variety of purposes.
 Historic examples include maps of buildings and land ownership in the Old Babylonian dynasty more than 3000 years ago and Ptolemy's world map in his masterpiece *Geography*\index{geography} nearly 2000 years ago [@talbert_ancient_2014].
 
-map-making has historically been an activity undertaken only by, or on behalf of, the elite.
+Map-making has historically been an activity undertaken only by, or on behalf of, the elite.
 This has changed with the emergence of open source mapping software such as the R package **tmap** and the 'print layout' in QGIS\index{QGIS} which enable anyone to make high-quality maps, enabling 'citizen science'.
 Maps are also often the best way to present the findings of geocomputational research in a way that is accessible.
 map-making is therefore a critical part of geocomputation\index{geocomputation} and its emphasis not only on describing, but also *changing* the world.