diff --git a/addons/hr/hr.py b/addons/hr/hr.py
index 3c307b9fee8..239c6777e69 100644
--- a/addons/hr/hr.py
+++ b/addons/hr/hr.py
@@ -180,10 +180,9 @@ class hr_employee(osv.osv):
         'resource_id': fields.many2one('resource.resource', 'Resource', ondelete='cascade', required=True),
         'coach_id': fields.many2one('hr.employee', 'Coach'),
         'job_id': fields.many2one('hr.job', 'Job'),
+        # image: all image fields are base64 encoded and PIL-supported
         'image': fields.binary("Photo",
-            help="This field holds the image used as a photo for the "\
-                 "employee. The image is base64 encoded, and PIL-supported. "\
-                 "It is limited to a 1024x1024 px image."),
+            help="This field holds the image used as photo for the employee, limited to 1024x1024px."),
         'image_medium': fields.function(_get_image, fnct_inv=_set_image,
             string="Medium-sized photo", type="binary", multi="_get_image",
             store = {
diff --git a/addons/mail/mail_group.py b/addons/mail/mail_group.py
index fdfeafd4afe..28e62c3b374 100644
--- a/addons/mail/mail_group.py
+++ b/addons/mail/mail_group.py
@@ -56,13 +56,12 @@ class mail_group(osv.Model):
             help="Members of those groups will automatically added as followers. "\
                  "Note that they will be able to manage their subscription manually "\
                  "if necessary."),
+        # image: all image fields are base64 encoded and PIL-supported
         'image': fields.binary("Photo",
-            help="This field holds the image used as photo for the "\
-                 "user. The image is base64 encoded, and PIL-supported. "\
-                 "It is limited to a 1024x1024 px image."),
+            help="This field holds the image used as photo for the group, limited to 1024x1024px."),
         'image_medium': fields.function(_get_image, fnct_inv=_set_image,
             string="Medium-sized photo", type="binary", multi="_get_image",
-            store = {
+            store={
                 'mail.group': (lambda self, cr, uid, ids, c={}: ids, ['image'], 10),
             },
             help="Medium-sized photo of the group. It is automatically "\
@@ -70,7 +69,7 @@ class mail_group(osv.Model):
                  "Use this field in form views or some kanban views."),
         'image_small': fields.function(_get_image, fnct_inv=_set_image,
             string="Small-sized photo", type="binary", multi="_get_image",
-            store = {
+            store={
                 'mail.group': (lambda self, cr, uid, ids, c={}: ids, ['image'], 10),
             },
             help="Small-sized photo of the group. It is automatically "\
diff --git a/addons/point_of_sale/point_of_sale.py b/addons/point_of_sale/point_of_sale.py
index 2d6d8b92da1..65abde1f617 100644
--- a/addons/point_of_sale/point_of_sale.py
+++ b/addons/point_of_sale/point_of_sale.py
@@ -1211,17 +1211,15 @@ class pos_category(osv.osv):
         'child_id': fields.one2many('pos.category', 'parent_id', string='Children Categories'),
         'sequence': fields.integer('Sequence', help="Gives the sequence order when displaying a list of product categories."),
         
-        # NOTE:  there is no 'default image', because by default we don't show thumbnails for categories. However if we have a thumbnail
+        # NOTE: there is no 'default image', because by default we don't show thumbnails for categories. However if we have a thumbnail
         # for at least one category, then we display a default image on the other, so that the buttons have consistent styling.
-        # In this case, the default image is set by the js code. 
-
+        # In this case, the default image is set by the js code.
+        # NOTE2: image: all image fields are base64 encoded and PIL-supported
         'image': fields.binary("Image",
-            help="This field holds the image used for the category. "\
-                 "The image is base64 encoded, and PIL-supported. "\
-                 "It is limited to a 1024x1024 px image."),
+            help="This field holds the image used as image for the cateogry, limited to 1024x1024px."),
         'image_medium': fields.function(_get_image, fnct_inv=_set_image,
             string="Medium-sized image", type="binary", multi="_get_image",
-            store = {
+            store={
                 'pos.category': (lambda self, cr, uid, ids, c={}: ids, ['image'], 10),
             },
             help="Medium-sized image of the category. It is automatically "\
@@ -1229,7 +1227,7 @@ class pos_category(osv.osv):
                  "Use this field in form views or some kanban views."),
         'image_small': fields.function(_get_image, fnct_inv=_set_image,
             string="Smal-sized image", type="binary", multi="_get_image",
-            store = {
+            store={
                 'pos.category': (lambda self, cr, uid, ids, c={}: ids, ['image'], 10),
             },
             help="Small-sized image of the category. It is automatically "\
diff --git a/addons/product/product.py b/addons/product/product.py
index 16b08e67cee..5ee37c5db64 100644
--- a/addons/product/product.py
+++ b/addons/product/product.py
@@ -548,13 +548,12 @@ class product_product(osv.osv):
         'pricelist_id': fields.dummy(string='Pricelist', relation='product.pricelist', type='many2one'),
         'name_template': fields.related('product_tmpl_id', 'name', string="Name", type='char', size=128, store=True, select=True),
         'color': fields.integer('Color Index'),
+        # image: all image fields are base64 encoded and PIL-supported
         'image': fields.binary("Image",
-            help="This field holds the image used for the product. "\
-                 "The image is base64 encoded, and PIL-supported. "\
-                 "It is limited to a 1024x1024 px image."),
+            help="This field holds the image used as image for the product, limited to 1024x1024px."),
         'image_medium': fields.function(_get_image, fnct_inv=_set_image,
             string="Medium-sized image", type="binary", multi="_get_image",
-            store = {
+            store={
                 'product.product': (lambda self, cr, uid, ids, c={}: ids, ['image'], 10),
             },
             help="Medium-sized image of the product. It is automatically "\
@@ -562,7 +561,7 @@ class product_product(osv.osv):
                  "Use this field in form views or some kanban views."),
         'image_small': fields.function(_get_image, fnct_inv=_set_image,
             string="Small-sized image", type="binary", multi="_get_image",
-            store = {
+            store={
                 'product.product': (lambda self, cr, uid, ids, c={}: ids, ['image'], 10),
             },
             help="Small-sized image of the product. It is automatically "\