diff --git a/model-many.Rmd b/model-many.Rmd
index ac15552..bbffcda 100644
--- a/model-many.Rmd
+++ b/model-many.Rmd
@@ -271,7 +271,7 @@ We see two main effects here: the tragedies of the HIV/AIDS epidemic and the Rwa
 
 ## List-columns
 
-Now that you've seen a basic workflow for managing many models, let's dive back into some of the details. In this section, we'll explore the list-column data structure in a little more detail. It's only recently that I've really appreciated the idea of the list-column. List-columns are implicit in the definition of the data frame: a data frame is a named list of equal length vectors. A list is a vector, so it's always been legitimate to put use a list as a column of a data frame. However, base R doesn't make it easy to create list-columns, and `data.frame()` treats a list as a list of columns:.
+Now that you've seen a basic workflow for managing many models, let's dive back into some of the details. In this section, we'll explore the list-column data structure in a little more detail. It's only recently that I've really appreciated the idea of the list-column. List-columns are implicit in the definition of the data frame: a data frame is a named list of equal length vectors. A list is a vector, so it's always been legitimate to use a list as a column of a data frame. However, base R doesn't make it easy to create list-columns, and `data.frame()` treats a list as a list of columns:.
 
 ```{r}
 data.frame(x = list(1:3, 3:5))