diff --git a/doc/salome/gui/GEOM/images/geomcreategroup.png b/doc/salome/gui/GEOM/images/geomcreategroup.png
index ea1e533ee..1682ae431 100755
Binary files a/doc/salome/gui/GEOM/images/geomcreategroup.png and b/doc/salome/gui/GEOM/images/geomcreategroup.png differ
diff --git a/doc/salome/gui/GEOM/input/creating_circle.doc b/doc/salome/gui/GEOM/input/creating_circle.doc
index 7b0442a3a..787f06cf2 100644
--- a/doc/salome/gui/GEOM/input/creating_circle.doc
+++ b/doc/salome/gui/GEOM/input/creating_circle.doc
@@ -15,8 +15,8 @@ Radius)
\n Arguments: Name + 1 vertex (for the center) + 1 edge (for
the direction) + Radius.
-\note Passing None as Center Point means Origin of global
-coordinate system, passing None as \b Vector means OZ axis of global
+\note By default it is presumed that the Center Point is located at the Origin of the global
+coordinate system, and the \b Vector corresponds to OZ axis of the global
coordinate system.
\image html circle1.png
diff --git a/doc/salome/gui/GEOM/input/creating_disk.doc b/doc/salome/gui/GEOM/input/creating_disk.doc
index 821198c43..064ea0abb 100755
--- a/doc/salome/gui/GEOM/input/creating_disk.doc
+++ b/doc/salome/gui/GEOM/input/creating_disk.doc
@@ -2,25 +2,26 @@
\page create_disk_page Disk
+A primitive called disk is a round plane with a certain radius and orientation
+
To create a \b Disk in the Main Menu select New Entity - >
Primitives - > Disk
\n There are 3 algorithms to create a \b Disk in 3D space.
\n The \b Result of each operation will be a GEOM_Object (face).
-\n Firstly, you can create a \b Disk by the given radius at the origin
-of coordinates. You can define the axis of the disk by the orientation
-group buttons. There are three options to create an object in OXY, OYZ or OZX Planes.
+\n Firstly, you can create a \b Disk at the origin
+of coordinates defining its radius and selecting the orientation of its axis with radio
+ buttons (OXY, OYZ or OZX).This
+means that the Disk will lie in "OXY", "OYZ" or "OZX" plane correspondingly.
\n TUI Command: geompy.MakeDiskR(Radius, Orientation)
\n Arguments: Name + 2 values (Dimensions at origin: radius and
orientation).
-\n The orientation can be defined by "1", "2" or "3" values. This
-means that Disk will lie in "OXY", "OYZ" or "OZX" plane correspondingly.
\image html disk1.png
\n Secondly, you can define a \b Disk by a Center Point, a \b
-Vector giving the circle's normal and a \b Radius.
+Vector defining the normal of a circle and a \b Radius.
\n TUI Command: geompy.MakeDiskPntVecR(Point, Vector,
Radius)
\n Arguments: Name + 1 vertex (for the center) + 1 edge (for
diff --git a/doc/salome/gui/GEOM/input/creating_ellipse.doc b/doc/salome/gui/GEOM/input/creating_ellipse.doc
index 8d9fdc6f2..2023d2cdf 100644
--- a/doc/salome/gui/GEOM/input/creating_ellipse.doc
+++ b/doc/salome/gui/GEOM/input/creating_ellipse.doc
@@ -12,8 +12,8 @@ Vector giving its normal, and its Major & Minor Radiuses.
\n Arguments: Name + 1 vertex (for the center) + 1 edge (for
the direction) + 1 X Radius + 1 Y Radius.
-\note Passing None as Center Point means Origin of global
-coordinate system, passing None as \b Vector means OZ axis of global
+\note By default it is presumed that the Center Point is located at the Origin of the global
+coordinate system, and the \b Vector corresponds to OZ axis of the global
coordinate system.
\image html ellipse.png
diff --git a/doc/salome/gui/GEOM/input/creating_extrusion.doc b/doc/salome/gui/GEOM/input/creating_extrusion.doc
index 70cc6edb0..6cc92388c 100644
--- a/doc/salome/gui/GEOM/input/creating_extrusion.doc
+++ b/doc/salome/gui/GEOM/input/creating_extrusion.doc
@@ -37,7 +37,7 @@ shell) serving as base object + 2 vertices.
\n Finally, you can define the \b Extrusion by the Base Shape
and the DX, DY, DZ Vector\n
Both Directions checkbox allows extruding the
-source objects forward and backward also.
+source objects both forward and backward.
\n TUI Command: geompy.MakePrismDXDYDZ(Base, dx, dy, dz)
\n Arguments: Name + 1 shape (vertex, edge, planar wire, face or
shell) serving as base object + 3 axis directions.
diff --git a/doc/salome/gui/GEOM/input/creating_squareface.doc b/doc/salome/gui/GEOM/input/creating_squareface.doc
index effcc67e5..15db5f23f 100755
--- a/doc/salome/gui/GEOM/input/creating_squareface.doc
+++ b/doc/salome/gui/GEOM/input/creating_squareface.doc
@@ -1,33 +1,34 @@
/*!
-\page create_squareface_page Face
+\page create_squareface_page Square Face
-To create a \b Disk in the Main Menu select New Entity - >
+A primitive called Square Face is a square plane of certain dimensions and orientation
+
+To create a \b Square Face in the Main Menu select New Entity - >
Primitives - > Face
-\n There are 2 algorithms to create a \b Face in 3D space.
+\n There are 2 algorithms to create a \b Square \b Face in the 3D space.
\n The \b Result of each operation will be a GEOM_Object (Face).
-\n Firstly, you can create a \b Face by the given height and width at the origin
-of coordinates. You can define the axis of the face by the orientation
-group buttons. There are three options to create a face in OXY, OYZ or OZX Planes.
+\n Firstly, you can create a \b Face at the origin
+of coordinates defining its boundaries by the height and the width and its axis by the orientation
+radio buttons (OXY, OYZ or OZX).This
+means that the Square Face will lie in "OXY", "OYZ" or "OZX" plane correspondingly.
\n TUI Command: geompy.MakeFaceHW(Height, Width, Orientation)
\n Arguments: Name + 3 values (Dimensions at origin: heigth, width and
orientation).
-\n The orientation can be defined by "1", "2" or "3" values. This
-means that the Disk will lie in "OXY", "OYZ" or "OZX" plane correspondingly.
+
\image html face1.png
-\n Secondly, you can define a \b Face by a \b Vector giving the face's normal to the center and
-\b Heigth and Width sizes.
+\n Secondly, you can define a \b Face by Heigth and Width sizes and an \b Edge defining the normal to the center of the face.
\n TUI Command: geompy.MakeFaceObjHW(Vector, Height, Width)
-\n Arguments: Name + 1 Vector (normale to the center) + 2 doubles (to
+\n Arguments: Name + 1 Vector (normal to the center) + 2 doubles (to
describe a face sizes).
-\n You can also create face from another selected face. Just turn the Object Type button
-to condition \b Face, then you can select a face object and set new values of
-Height and Width for the newly face. The created face will lie in the plane
-of the selected face.
+
+\n It is also possible to create a Square Face from another selected face. For this, switch the Object Type button
+to \b Face, then select a face object and set the values of
+Height and Width for the new face. The created face will lie in the plane of the selected face.
\n TUI Command: geompy.MakeFaceObjHW(Face, Height, Width)
\n Arguments: Name + 1 Face + 2 parameters (to describe a face sizes).
diff --git a/doc/salome/gui/GEOM/input/import_export.doc b/doc/salome/gui/GEOM/input/import_export.doc
index 25eb1ae67..1cd5cc459 100644
--- a/doc/salome/gui/GEOM/input/import_export.doc
+++ b/doc/salome/gui/GEOM/input/import_export.doc
@@ -22,11 +22,11 @@ Select the required file and click \b Open. Your file will be imported in
the module and its contents (geometrical object) will be displayed in
the Object Browser.
-\note You can re-open ones imported shape from the initial file, if
-the file has been changed on disk. Use for that item
-Reload From Disk from context menu of imported
-shape. Reloaded shape will have the same representation parameters
-like before this operation.
+\note It is possible to re-open from the initial file a previously imported shape if
+the file has been changed on disk. For this, select
+Reload From Disk in the context menu of the imported
+shape. The reloaded shape will have the same representation parameters
+as before this operation.
\image html geomimport_reopen.png
diff --git a/doc/salome/gui/GEOM/input/working_with_groups.doc b/doc/salome/gui/GEOM/input/working_with_groups.doc
index a2ef93fc9..5c924b3ec 100644
--- a/doc/salome/gui/GEOM/input/working_with_groups.doc
+++ b/doc/salome/gui/GEOM/input/working_with_groups.doc
@@ -21,20 +21,20 @@ In this Menu:
- Shape Type radio button defines the type of elements for the
group (points, wires, faces, shells or solids).
-- Group Name - here you can enter the name of the group, by
+
- Group Name - allows defining the name of the group, by
default, it is Group_n.
- Then, using the "Select" button, select the Main Shape (a
geometrical object on which the group will be created).
-- Main Shape Selection restriction button group lets you restrict the range
-of group elements you operate with.
-
- No restriction button enables work with all sub-shapes of the Main
+
- Main Shape Selection restriction button group allows limiting the range
+of available group elements,
+
- No restriction button enables all sub-shapes of the Main
Shape.
- Geometrical parts of the Second Shape restricts the range of accessible
-elements to those sub-shapes of the Main Shape that geometrically
+elements to the sub-shapes of the Main Shape that geometrically
coincide with the Second Shape.
- Only Sub-Shapes of the Second Shape restricts the range of
-accessible elements to those sub-shapes of the Main Shape that
-are sub-shapes of Second Shape. This is useful because
+accessible elements to the sub-shapes of the Main Shape that
+are sub-shapes of the Second Shape. This is useful because
sometimes purely geometrical coincidence is not enough and it
is necessary to work with shapes, which actually belong both
to the main and the second shape.