diff --git a/sources/01b-visualization.ipynb b/sources/01b-visualization.ipynb
index 419164a..70594a0 100644
--- a/sources/01b-visualization.ipynb
+++ b/sources/01b-visualization.ipynb
@@ -94,12 +94,12 @@
     "\n",
     "- `S2B` shows that the downloaded products was captured by the Sentinel-2 satellite B. At the moment there are two satellites in the mission, A and B.\n",
     "- `MSI` stands for Multi Spectral Instrument.\n",
-    "- `L2A` is the processing level; Level 2A is the highest processing level and mostly. Lower processing levels need further processing depending on your use-case.\n",
+    "- `L2A` is the processing level. Level 2A is the highest processing level and lower processing levels may need further processing to be useful.\n",
     "- The first timestamp, `20200602T100559`, is the date at which the data was captured.\n",
     "- `N0214` is the processing baseline. This is like a version string that encodes how the previous processing steps were performed.\n",
     "- `R022` is the relative orbit number.\n",
     "- `T33UUU` is the unique name of the area which is covered by the product.\n",
-    "- The second timestamp, `20200602T135324`, \"is the '\\<Product Discriminator\\>' field, which is [...] used to distinguish between different end user products from the same datatake.\" ([Source](https://sentinel.esa.int/web/sentinel/user-guides/sentinel-2-msi/naming-convention))"
+    "- The second timestamp, `20200602T135324`, \"is the '\\<Product Discriminator\\>' field, which [...] is used to distinguish between different end user products from the same datatake.\" ([Source](https://sentinel.esa.int/web/sentinel/user-guides/sentinel-2-msi/naming-convention))"
    ]
   },
   {