diff --git a/episodes/imaging-software.Rmd b/episodes/imaging-software.Rmd
index ba9b2e0..686a625 100644
--- a/episodes/imaging-software.Rmd
+++ b/episodes/imaging-software.Rmd
@@ -48,7 +48,7 @@ It's important to consider if the software you are using is open-source
 or proprietary (requiring a one-off payment or a regular subscription fee to 
 use). Open source means it is more freely available and likely more accessible 
 to a larger group of researchers, but it may not be as robust or stable as
-software commerically developed by large team, particularly if you are 
+software commercially developed by large team, particularly if you are 
 interested in a very specific feature that it provides. Open source software
 often will rely on more open file formats and workflows, and they are designed
 to be extended by the community.
diff --git a/episodes/instance-segmentation-classic.Rmd b/episodes/instance-segmentation-classic.Rmd
index 34c6e8b..7fd4782 100644
--- a/episodes/instance-segmentation-classic.Rmd
+++ b/episodes/instance-segmentation-classic.Rmd
@@ -297,7 +297,7 @@ upper most light purple nucleus and its neighbour.
 
 ::::::::::::::::::::::: instructor
 ### Check time before going into smallest one
-This and clear border wil be nice to have, but you really need to 
+This and clear border will be nice to have, but you really need to 
 get everything previously done efficiently.
 :::::::::::::::::::::::
 
diff --git a/episodes/napari-notebook.Rmd b/episodes/napari-notebook.Rmd
index c1877c7..ee39db2 100644
--- a/episodes/napari-notebook.Rmd
+++ b/episodes/napari-notebook.Rmd
@@ -156,7 +156,7 @@ Then open it from the notebook
 viewer = napari.Viewer()
 ```
 
-Finally open a sample iamge. 
+Finally open a sample image. 
 ``` python
 # Open Cells (3D + 2Ch) sample image in napari's viewer
 viewer.open_sample("napari", "cells3d")