diff --git a/doc/source/glossary.rst b/doc/source/glossary.rst
index c4a93f908..a9460b1a2 100644
--- a/doc/source/glossary.rst
+++ b/doc/source/glossary.rst
@@ -23,7 +23,7 @@ Alignment
 .. _Array:
 
 Array
-    This represents a list of items, which can be access by an index, which is zero-based (meaning the first
+    This represents a list of items, which can be accessed by an index, which is zero-based (meaning the first
     element has index 0).  Items in arrays are almost always the same size (it is not a generic list, as in python)
     even if they are :ref:`pointers<pointer>` to different sized objects.
 
@@ -43,7 +43,14 @@ Dereference
 .. _Domain:
 
 Domain
-    This the grouping for input values for a mapping or mathematical function.
+    The set of input values for a mapping or mathematical function.
+
+I
+-
+.. _Intermediate Symbol File (ISF):
+
+Intermediate Symbol File (ISF)
+    They contain kernel structures and specific offsets formatted as JSON. For macOS and Linux analysis, the kernel needs to be added as an ISF file to the volatility 3 symbols directory.  For Windows, the required ISF file can often be generated from PDB files automatically downloaded from Microsoft servers, and therefore does not require manual intervention.
 
 M
 -
@@ -55,7 +62,7 @@ Map, mapping
     attempts to use mathematical functional notation where possible.  Within volatility a mapping is most often
     used to refer to the function for translating addresses from a higher layer (domain) to a lower layer (range).
     For further information, please see
-    `Function (mathematics) in wikipedia https://en.wikipedia.org/wiki/Function_(mathematics)`
+    `https://en.wikipedia.org/wiki/Function_(mathematics)`.
 
 
 .. _Member:
@@ -69,7 +76,7 @@ O
 .. _Object:
 
 Object
-    This has a specific meaning within computer programming (as in Object Oriented Programming), but within the world
+    This has a specific meaning within computer programming (as in object-oriented programming), but within the world
     of Volatility it is used to refer to a type that has been associated with a chunk of data, or a specific instance
     of a type.  See also :ref:`Type<type>`.