diff --git a/openstackclient/compute/v2/agent.py b/openstackclient/compute/v2/agent.py
index b79ebbe7..c8fb6ccc 100644
--- a/openstackclient/compute/v2/agent.py
+++ b/openstackclient/compute/v2/agent.py
@@ -136,7 +136,7 @@ class SetAgent(show.ShowOne):
         parser.add_argument(
             "id",
             metavar="<id>",
-            help="ID of the agent build")
+            help="ID of the agent")
         parser.add_argument(
             "version",
             metavar="<version>",
diff --git a/openstackclient/compute/v2/server.py b/openstackclient/compute/v2/server.py
index 87f5f689..808741fd 100644
--- a/openstackclient/compute/v2/server.py
+++ b/openstackclient/compute/v2/server.py
@@ -483,40 +483,40 @@ class ListServer(lister.Lister):
         parser.add_argument(
             '--reservation-id',
             metavar='<reservation-id>',
-            help='only return instances that match the reservation')
+            help='Only return instances that match the reservation')
         parser.add_argument(
             '--ip',
             metavar='<ip-address-regex>',
-            help='regular expression to match IP address')
+            help='Regular expression to match IP addresses')
         parser.add_argument(
             '--ip6',
             metavar='<ip-address-regex>',
-            help='regular expression to match IPv6 address')
+            help='Regular expression to match IPv6 addresses')
         parser.add_argument(
             '--name',
             metavar='<name>',
-            help='regular expression to match name')
+            help='Regular expression to match names')
         parser.add_argument(
             '--status',
             metavar='<status>',
             # FIXME(dhellmann): Add choices?
-            help='search by server status')
+            help='Search by server status')
         parser.add_argument(
             '--flavor',
             metavar='<flavor>',
-            help='search by flavor ID')
+            help='Search by flavor ID')
         parser.add_argument(
             '--image',
             metavar='<image>',
-            help='search by image ID')
+            help='Search by image ID')
         parser.add_argument(
             '--host',
             metavar='<hostname>',
-            help='search by hostname')
+            help='Search by hostname')
         parser.add_argument(
             '--instance-name',
             metavar='<server-name>',
-            help='regular expression to match instance name (admin only)')
+            help='Regular expression to match instance name (admin only)')
         parser.add_argument(
             '--all-projects',
             action='store_true',
@@ -526,7 +526,7 @@ class ListServer(lister.Lister):
             '--long',
             action='store_true',
             default=False,
-            help='Additional fields are listed in output')
+            help='List additional fields in output')
         return parser
 
     def take_action(self, parsed_args):
@@ -1181,14 +1181,14 @@ class SshServer(command.Command):
             dest='ipv4',
             action='store_true',
             default=False,
-            help='Use only IPv4 addresses only',
+            help='Use only IPv4 addresses',
         )
         ip_group.add_argument(
             '-6',
             dest='ipv6',
             action='store_true',
             default=False,
-            help='Use only IPv6 addresses only',
+            help='Use only IPv6 addresses',
         )
         type_group = parser.add_mutually_exclusive_group()
         type_group.add_argument(
diff --git a/openstackclient/compute/v2/usage.py b/openstackclient/compute/v2/usage.py
index 30835769..1dfe8c0a 100644
--- a/openstackclient/compute/v2/usage.py
+++ b/openstackclient/compute/v2/usage.py
@@ -35,7 +35,7 @@ class ListUsage(lister.Lister):
             "--start",
             metavar="<start>",
             default=None,
-            help="Usage range start date ex 2012-01-20"
+            help="Usage range start date, ex 2012-01-20"
                 " (default: 4 weeks ago)."
         )
         parser.add_argument(
diff --git a/openstackclient/identity/v2_0/endpoint.py b/openstackclient/identity/v2_0/endpoint.py
index 5a050fa1..0319c268 100644
--- a/openstackclient/identity/v2_0/endpoint.py
+++ b/openstackclient/identity/v2_0/endpoint.py
@@ -106,7 +106,7 @@ class ListEndpoint(lister.Lister):
             '--long',
             action='store_true',
             default=False,
-            help='Additional fields are listed in output')
+            help='List additional fields in output')
         return parser
 
     def take_action(self, parsed_args):
diff --git a/openstackclient/identity/v2_0/service.py b/openstackclient/identity/v2_0/service.py
index 92d1e099..ea45f634 100644
--- a/openstackclient/identity/v2_0/service.py
+++ b/openstackclient/identity/v2_0/service.py
@@ -104,7 +104,7 @@ class ListService(lister.Lister):
             '--long',
             action='store_true',
             default=False,
-            help='Additional fields are listed in output')
+            help='List additional fields in output')
         return parser
 
     def take_action(self, parsed_args):
diff --git a/openstackclient/identity/v2_0/user.py b/openstackclient/identity/v2_0/user.py
index 371c45a9..55ba5ab6 100644
--- a/openstackclient/identity/v2_0/user.py
+++ b/openstackclient/identity/v2_0/user.py
@@ -143,7 +143,7 @@ class ListUser(lister.Lister):
             '--long',
             action='store_true',
             default=False,
-            help='Additional fields are listed in output')
+            help='List additional fields in output')
         return parser
 
     def take_action(self, parsed_args):
diff --git a/openstackclient/identity/v3/endpoint.py b/openstackclient/identity/v3/endpoint.py
index 43da07aa..e0b1f1a3 100644
--- a/openstackclient/identity/v3/endpoint.py
+++ b/openstackclient/identity/v3/endpoint.py
@@ -120,7 +120,7 @@ class ListEndpoint(lister.Lister):
             '--long',
             action='store_true',
             default=False,
-            help='Additional fields are listed in output')
+            help='List additional fields in output')
         return parser
 
     def take_action(self, parsed_args):
diff --git a/openstackclient/identity/v3/group.py b/openstackclient/identity/v3/group.py
index b5d24ef5..6c059b5d 100644
--- a/openstackclient/identity/v3/group.py
+++ b/openstackclient/identity/v3/group.py
@@ -197,7 +197,7 @@ class ListGroup(lister.Lister):
             '--long',
             action='store_true',
             default=False,
-            help='Additional fields are listed in output',
+            help='List additional fields in output',
         )
         return parser
 
diff --git a/openstackclient/identity/v3/policy.py b/openstackclient/identity/v3/policy.py
index cdbb1cf2..a760d8cd 100644
--- a/openstackclient/identity/v3/policy.py
+++ b/openstackclient/identity/v3/policy.py
@@ -37,7 +37,7 @@ class CreatePolicy(show.ShowOne):
             '--type',
             metavar='<policy-type>',
             default="application/json",
-            help='New MIME Type of the policy blob - i.e.: application/json',
+            help='New MIME type of the policy blob - i.e.: application/json',
         )
         parser.add_argument(
             'blob_file',
diff --git a/openstackclient/identity/v3/token.py b/openstackclient/identity/v3/token.py
index 68f9ffef..3cc78cd7 100644
--- a/openstackclient/identity/v3/token.py
+++ b/openstackclient/identity/v3/token.py
@@ -213,12 +213,12 @@ class DeleteAccessToken(command.Command):
         parser.add_argument(
             'user',
             metavar='<user>',
-            help='Name or Id of user',
+            help='Name or ID of user',
         )
         parser.add_argument(
             'access_key',
             metavar='<access-key>',
-            help='Access Token to be deleted',
+            help='Access token to be deleted',
         )
         return parser
 
@@ -243,7 +243,7 @@ class ListAccessToken(lister.Lister):
         parser.add_argument(
             'user',
             metavar='<user>',
-            help='Name or Id of user',
+            help='Name or ID of user',
         )
         return parser
 
diff --git a/openstackclient/identity/v3/user.py b/openstackclient/identity/v3/user.py
index 54ffe561..2cb1b4d2 100644
--- a/openstackclient/identity/v3/user.py
+++ b/openstackclient/identity/v3/user.py
@@ -174,7 +174,7 @@ class ListUser(lister.Lister):
             '--long',
             action='store_true',
             default=False,
-            help='Additional fields are listed in output',
+            help='List additional fields in output',
         )
         return parser
 
diff --git a/openstackclient/shell.py b/openstackclient/shell.py
index 76cc3c6a..49307992 100644
--- a/openstackclient/shell.py
+++ b/openstackclient/shell.py
@@ -117,7 +117,7 @@ class OpenStackShell(app.App):
                     action='store_true',
                     dest='deferred_help',
                     default=False,
-                    help="show this help message and exit",
+                    help="Show this help message and exit",
                 )
 
     def run(self, argv):
@@ -147,21 +147,21 @@ class OpenStackShell(app.App):
             '--os-domain-name',
             metavar='<auth-domain-name>',
             default=env('OS_DOMAIN_NAME'),
-            help='Domain name of the requested domain-level'
+            help='Domain name of the requested domain-level '
                  'authorization scope (Env: OS_DOMAIN_NAME)',
         )
         parser.add_argument(
             '--os-domain-id',
             metavar='<auth-domain-id>',
             default=env('OS_DOMAIN_ID'),
-            help='Domain ID of the requested domain-level'
+            help='Domain ID of the requested domain-level '
                  'authorization scope (Env: OS_DOMAIN_ID)',
         )
         parser.add_argument(
             '--os-project-name',
             metavar='<auth-project-name>',
             default=env('OS_PROJECT_NAME', default=env('OS_TENANT_NAME')),
-            help='Project name of the requested project-level'
+            help='Project name of the requested project-level '
                  'authorization scope (Env: OS_PROJECT_NAME)',
         )
         parser.add_argument(
@@ -174,7 +174,7 @@ class OpenStackShell(app.App):
             '--os-project-id',
             metavar='<auth-project-id>',
             default=env('OS_PROJECT_ID', default=env('OS_TENANT_ID')),
-            help='Project ID of the requested project-level'
+            help='Project ID of the requested project-level '
                  'authorization scope (Env: OS_PROJECT_ID)',
         )
         parser.add_argument(
diff --git a/openstackclient/volume/v1/backup.py b/openstackclient/volume/v1/backup.py
index dbf6eb73..ac34749b 100644
--- a/openstackclient/volume/v1/backup.py
+++ b/openstackclient/volume/v1/backup.py
@@ -41,7 +41,7 @@ class CreateBackup(show.ShowOne):
             '--container',
             metavar='<container>',
             required=False,
-            help='Optional Backup container name.',
+            help='Optional backup container name.',
         )
         parser.add_argument(
             '--name',
diff --git a/openstackclient/volume/v1/type.py b/openstackclient/volume/v1/type.py
index ecf22781..edacb397 100644
--- a/openstackclient/volume/v1/type.py
+++ b/openstackclient/volume/v1/type.py
@@ -100,7 +100,7 @@ class ListVolumeType(lister.Lister):
             '--long',
             action='store_true',
             default=False,
-            help='Additional fields are listed in output')
+            help='List additional fields in output')
         return parser
 
     def take_action(self, parsed_args):
diff --git a/openstackclient/volume/v1/volume.py b/openstackclient/volume/v1/volume.py
index 0253bc1d..928ed76b 100644
--- a/openstackclient/volume/v1/volume.py
+++ b/openstackclient/volume/v1/volume.py
@@ -68,7 +68,7 @@ class CreateVolume(show.ShowOne):
         parser.add_argument(
             '--project',
             metavar='<project>',
-            help='Specify a diffeent project (admin only)',
+            help='Specify a different project (admin only)',
         )
         parser.add_argument(
             '--availability-zone',