diff --git a/apps/activity/serializers.py b/apps/activity/serializers.py
index cca55751..4d79426b 100644
--- a/apps/activity/serializers.py
+++ b/apps/activity/serializers.py
@@ -6,33 +6,60 @@ from .models import ActivityType, Activity, Guest
 from rest_framework import serializers, viewsets
 
 class ActivityTypeSerializer(serializers.HyperlinkedModelSerializer):
+    """
+    REST API Serializer for Activity types.
+    The djangorestframework plugin will analyse the model `ActivityType` and parse all fields in the API.
+    """
     class Meta:
         model = ActivityType
         fields = '__all__'
 
 
 class ActivityTypeViewSet(viewsets.ModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `ActivityType` objects, serialize it to JSON with the given serializer,
+    then render it on /api/activity/type/
+    """
     queryset = ActivityType.objects.all()
     serializer_class = ActivityTypeSerializer
 
 
 class ActivitySerializer(serializers.HyperlinkedModelSerializer):
+    """
+    REST API Serializer for Activities.
+    The djangorestframework plugin will analyse the model `Activity` and parse all fields in the API.
+    """
     class Meta:
         model = Activity
         fields = '__all__'
 
 
 class ActivityViewSet(viewsets.ModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `Activity` objects, serialize it to JSON with the given serializer,
+    then render it on /api/activity/activity/
+    """
     queryset = Activity.objects.all()
     serializer_class = ActivitySerializer
 
 
 class GuestSerializer(serializers.HyperlinkedModelSerializer):
+    """
+    REST API Serializer for Guests.
+    The djangorestframework plugin will analyse the model `Guest` and parse all fields in the API.
+    """
     class Meta:
         model = Guest
         fields = '__all__'
 
 
 class GuestViewSet(viewsets.ModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `Guest` objects, serialize it to JSON with the given serializer,
+    then render it on /api/activity/guest/
+    """
     queryset = Guest.objects.all()
     serializer_class = GuestSerializer
diff --git a/apps/api/urls.py b/apps/api/urls.py
index cca07d80..c149b3f4 100644
--- a/apps/api/urls.py
+++ b/apps/api/urls.py
@@ -11,11 +11,20 @@ from note.serializers import NoteViewSet, NoteClubViewSet, NoteUserViewSet, Note
                             TransactionViewSet, TransactionTemplateViewSet, MembershipTransactionViewSet
 
 class UserSerializer(serializers.HyperlinkedModelSerializer):
+    """
+    REST API Serializer for Users.
+    The djangorestframework plugin will analyse the model `User` and parse all fields in the API.
+    """
     class Meta:
         model = User
         fields = ('username', 'first_name', 'last_name', 'email', 'is_staff',)
 
 class UserViewSet(viewsets.ModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `User` objects, serialize it to JSON with the given serializer,
+    then render it on /api/users/
+    """
     queryset = User.objects.all()
     serializer_class = UserSerializer
 
@@ -23,21 +32,24 @@ class UserViewSet(viewsets.ModelViewSet):
 router = routers.DefaultRouter()
 router.register(r'users', UserViewSet)
 
+# Routers for members app
 router.register(r'members/profile', ProfileViewSet)
 router.register(r'members/club', ClubViewSet)
 router.register(r'members/role', RoleViewSet)
 router.register(r'members/membership', MembershipViewSet)
 
+# Routers for activity app
 router.register(r'activity/activity', ActivityViewSet)
 router.register(r'activity/type', ActivityTypeViewSet)
 router.register(r'activity/guest', GuestViewSet)
 
+# Routers for note app
 router.register(r'note/note', NoteViewSet)
 router.register(r'note/club', NoteClubViewSet)
 router.register(r'note/user', NoteUserViewSet)
 router.register(r'note/special', NoteSpecialViewSet)
 
-router.register(r'note/transaction', TransactionViewSet)
+router.register(r'note/transaction/transaction', TransactionViewSet)
 router.register(r'note/transaction/template', TransactionTemplateViewSet)
 router.register(r'note/transaction/membership', MembershipTransactionViewSet)
 
diff --git a/apps/member/serializers.py b/apps/member/serializers.py
index cb6bcdce..2ead2c97 100644
--- a/apps/member/serializers.py
+++ b/apps/member/serializers.py
@@ -6,45 +6,81 @@ from .models import Profile, Club, Role, Membership
 from rest_framework import serializers, viewsets
 
 class ProfileSerializer(serializers.HyperlinkedModelSerializer):
+    """
+    REST API Serializer for Profiles.
+    The djangorestframework plugin will analyse the model `Profile` and parse all fields in the API.
+    """
     class Meta:
         model = Profile
         fields = '__all__'
 
 
 class ProfileViewSet(viewsets.ModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `Profile` objects, serialize it to JSON with the given serializer,
+    then render it on /api/members/profile/
+    """
     queryset = Profile.objects.all()
     serializer_class = ProfileSerializer
 
 
 class ClubSerializer(serializers.HyperlinkedModelSerializer):
+    """
+    REST API Serializer for Clubs.
+    The djangorestframework plugin will analyse the model `Club` and parse all fields in the API.
+    """
     class Meta:
         model = Club
         fields = '__all__'
 
 
 class ClubViewSet(viewsets.ModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `Club` objects, serialize it to JSON with the given serializer,
+    then render it on /api/members/club/
+    """
     queryset = Club.objects.all()
     serializer_class = ClubSerializer
 
 
 class RoleSerializer(serializers.HyperlinkedModelSerializer):
+    """
+    REST API Serializer for Roles.
+    The djangorestframework plugin will analyse the model `Role` and parse all fields in the API.
+    """
     class Meta:
         model = Role
         fields = '__all__'
 
 
 class RoleViewSet(viewsets.ModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `Role` objects, serialize it to JSON with the given serializer,
+    then render it on /api/members/role/
+    """
     queryset = Role.objects.all()
     serializer_class = RoleSerializer
 
 
 class MembershipSerializer(serializers.HyperlinkedModelSerializer):
+    """
+    REST API Serializer for Memberships.
+    The djangorestframework plugin will analyse the model `Memberships` and parse all fields in the API.
+    """
     class Meta:
         model = Membership
         fields = '__all__'
 
 
 class MembershipViewSet(viewsets.ModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `Membership` objects, serialize it to JSON with the given serializer,
+    then render it on /api/members/membership/
+    """
     queryset = Membership.objects.all()
     serializer_class = MembershipSerializer
 
diff --git a/apps/note/serializers.py b/apps/note/serializers.py
index 39ce835a..db63ea6b 100644
--- a/apps/note/serializers.py
+++ b/apps/note/serializers.py
@@ -7,77 +7,140 @@ from .models.transactions import TransactionTemplate, Transaction, MembershipTra
 from rest_framework import serializers, viewsets
 
 class NoteSerializer(serializers.HyperlinkedModelSerializer):
+    """
+    REST API Serializer for Notes.
+    The djangorestframework plugin will analyse the model `Note` and parse all fields in the API.
+    """
     class Meta:
         model = Note
         fields = ('balance', 'is_active', 'display_image', 'created_at',)
 
 
 class NoteViewSet(viewsets.ModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `Note` objects, serialize it to JSON with the given serializer,
+    then render it on /api/note/note/
+    """
     queryset = Note.objects.all()
     serializer_class = NoteSerializer
 
 
 class NoteClubSerializer(serializers.HyperlinkedModelSerializer):
+    """
+    REST API Serializer for Club's notes.
+    The djangorestframework plugin will analyse the model `NoteClub` and parse all fields in the API.
+    """
     class Meta:
         model = NoteClub
         fields = ('balance', 'is_active', 'display_image', 'created_at', 'club',)
 
 
 class NoteClubViewSet(viewsets.ModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `NoteClub` objects, serialize it to JSON with the given serializer,
+    then render it on /api/note/club/
+    """
     queryset = NoteClub.objects.all()
     serializer_class = NoteClubSerializer
 
 
 class NoteSpecialSerializer(serializers.HyperlinkedModelSerializer):
+    """
+    REST API Serializer for special notes.
+    The djangorestframework plugin will analyse the model `NoteSpecial` and parse all fields in the API.
+    """
     class Meta:
         model = NoteSpecial
         fields = ('balance', 'is_active', 'display_image', 'created_at', 'club', 'special_type',)
 
 
 class NoteSpecialViewSet(viewsets.ModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `NoteSpecial` objects, serialize it to JSON with the given serializer,
+    then render it on /api/note/special/
+    """
     queryset = NoteSpecial.objects.all()
     serializer_class = NoteSpecialSerializer
 
 
 class NoteUserSerializer(serializers.HyperlinkedModelSerializer):
+    """
+    REST API Serializer for User's notes.
+    The djangorestframework plugin will analyse the model `NoteUser` and parse all fields in the API.
+    """
     class Meta:
         model = NoteUser
         fields = ('balance', 'is_active', 'display_image', 'created_at', 'user',)
 
 
 class NoteUserViewSet(viewsets.ModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `NoteUser` objects, serialize it to JSON with the given serializer,
+    then render it on /api/note/user/
+    """
     queryset = NoteUser.objects.all()
     serializer_class = NoteUserSerializer
 
 
 class TransactionTemplateSerializer(serializers.HyperlinkedModelSerializer):
+    """
+    REST API Serializer for Transaction templates.
+    The djangorestframework plugin will analyse the model `TransactionTemplate` and parse all fields in the API.
+    """
     class Meta:
         model = TransactionTemplate
         fields = '__all__'
 
 
 class TransactionTemplateViewSet(viewsets.ModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `TransactionTemplate` objects, serialize it to JSON with the given serializer,
+    then render it on /api/note/transaction/template/
+    """
     queryset = TransactionTemplate.objects.all()
     serializer_class = TransactionTemplateSerializer
 
 
 class TransactionSerializer(serializers.HyperlinkedModelSerializer):
+    """
+    REST API Serializer for Transactions.
+    The djangorestframework plugin will analyse the model `Transaction` and parse all fields in the API.
+    """
     class Meta:
         model = Transaction
         fields = '__all__'
 
 
 class TransactionViewSet(viewsets.ModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `Transaction` objects, serialize it to JSON with the given serializer,
+    then render it on /api/note/transaction/transaction/
+    """
     queryset = Transaction.objects.all()
     serializer_class = TransactionSerializer
 
 
 class MembershipTransactionSerializer(serializers.HyperlinkedModelSerializer):
+    """
+    REST API Serializer for Membership transactions.
+    The djangorestframework plugin will analyse the model `MembershipTransaction` and parse all fields in the API.
+    """
     class Meta:
         model = MembershipTransaction
         fields = '__all__'
 
 
 class MembershipTransactionViewSet(viewsets.ModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `MembershipTransaction` objects, serialize it to JSON with the given serializer,
+    then render it on /api/note/transaction/membership/
+    """
     queryset = MembershipTransaction.objects.all()
     serializer_class = MembershipTransactionSerializer