diff --git a/lib/content.py b/lib/content.py
new file mode 100644
index 0000000..3ef20ae
--- /dev/null
+++ b/lib/content.py
@@ -0,0 +1,133 @@
+from dataclasses import dataclass, field
+from typing import Optional, List, Dict
+
+from .utils import EncryptedFile, ImageInfo, FileInfo, AudioInfo, VideoInfo, LocationInfo, PreviousRoom, Invite
+
+
+@dataclass
+class ContentBase:
+    pass
+
+
+@dataclass
+class MessageContentBase(ContentBase):
+    body: str
+    msgtype: str
+
+
+@dataclass
+class MTextContent(MessageContentBase):
+    format: Optional[str] = None
+    formatted_body: Optional[str] = None
+    msgtype = 'm.text'
+
+
+@dataclass
+class MEmoteContent(MTextContent):
+    msgtype = 'm.emote'
+
+
+@dataclass
+class MNoticeContent(MTextContent):
+    msgtype = 'm.notice'
+
+
+@dataclass
+class MImageContent(MessageContentBase):
+    msgtype = 'm.image'
+    info: ImageInfo
+    url: Optional[str] = None
+    file: Optional[EncryptedFile] = None
+
+
+@dataclass
+class MFileContent(MessageContentBase):
+    msgtype = 'm.file'
+    filename: str
+    info: FileInfo
+    url: Optional[str] = None
+    file: Optional[EncryptedFile] = None
+
+
+@dataclass
+class MAudioContent(MessageContentBase):
+    msgtype = 'm.audio'
+    info: AudioInfo
+    url: Optional[str] = None
+    file: Optional[EncryptedFile] = None
+
+
+@dataclass
+class MLocationContent(MessageContentBase):
+    msgtype = 'm.location'
+    geo_uri: str
+    info: LocationInfo
+
+
+@dataclass
+class MVideoContent(MessageContentBase):
+    msgtype = 'm.video'
+    info: VideoInfo
+    url: Optional[str] = None
+    file: Optional[EncryptedFile] = None
+
+
+@dataclass
+class PresenceContent(ContentBase):
+    presence: str
+    last_active_ago: int
+    currently_active: bool
+    avatar_url: Optional[str] = None
+    displayname: Optional[str] = None
+    status_message: Optional[str] = None
+
+
+@dataclass
+class MRoomAliasesContent(ContentBase):
+    aliases: List[str]
+
+
+@dataclass
+class MRoomCanonicalAliasContent(ContentBase):
+    alias: str
+
+
+@dataclass
+class MRoomCreateContent(ContentBase):
+    creator: str
+    room_version: Optional[str] = '1'
+    m_federate: Optional[bool] = True
+    predecessor: Optional[PreviousRoom] = None
+
+
+@dataclass
+class MRoomJoinRulesContent(ContentBase):
+    join_rule: str
+
+
+@dataclass
+class MRoomMemberContent(ContentBase):
+    membership: str
+    is_direct: bool
+    third_party_invite: Optional[Invite] = None
+    avatar_url: Optional[str] = None
+    displayname: str = None
+
+
+@dataclass
+class MRoomPowerLevelsContent(ContentBase):
+    ban: int = 50
+    events: Dict[str, int] = field(default_factory=dict)
+    events_default: int = 0
+    invite: int = 50
+    kick: int = 50
+    redact: int = 50
+    state_default: int = 50
+    users: Dict[str, int] = field(default_factory=dict)
+    users_default: int = 0
+    notifications: Dict[str, int] = field(default={'room': 50})
+
+
+@dataclass
+class MRoomRedactionContent(ContentBase):
+    reason: str
diff --git a/lib/events.py b/lib/events.py
index 119d0cb..bc0296b 100644
--- a/lib/events.py
+++ b/lib/events.py
@@ -1 +1,39 @@
-# TODO Add Event classes
+from dataclasses import dataclass
+from typing import Optional, List
+
+from .room import Room
+from .content import ContentBase
+
+
+@dataclass
+class EventBase:
+    content: ContentBase
+    type: str
+    sender: str
+
+
+@dataclass
+class UnsignedData:
+    age: int
+    redacted_because: Optional[EventBase] = None
+    transaction_id: Optional[str] = None
+    invite_room_state: Optional[List[EventBase]] = None
+
+
+@dataclass
+class RoomEvent(EventBase):
+    event_id: str
+    origin_server_id: int
+    unsigned: UnsignedData
+    room: Room
+
+
+@dataclass
+class StateEvent(RoomEvent):
+    state_key: str
+    prev_content: Optional[EventBase] = None
+
+
+@dataclass
+class RedactionEvent(RoomEvent):
+    redacts: EventBase
diff --git a/lib/room.py b/lib/room.py
index 3c27e74..2646eeb 100644
--- a/lib/room.py
+++ b/lib/room.py
@@ -1 +1,6 @@
 # TODO Add Room class
+
+
+class Room:
+    def __init__(self, room_id: str):
+        self.id = room_id
diff --git a/lib/utils.py b/lib/utils.py
new file mode 100644
index 0000000..655b7fe
--- /dev/null
+++ b/lib/utils.py
@@ -0,0 +1,85 @@
+from dataclasses import dataclass
+from typing import Optional, List, Dict
+
+
+@dataclass
+class JSONWebKey:
+    key_opts: List[str]
+    k: str
+    ext: bool = True
+    alg: str = 'A256CTR'
+    kty: str = 'oct'
+
+
+@dataclass
+class EncryptedFile:
+    url: str
+    key: JSONWebKey
+    iv: str
+    hashes: Dict[str, str]
+    v: str = 'v2'
+
+
+@dataclass
+class ImageInfoBase:
+    h: int
+    w: int
+    mimetype: str
+    size: int
+
+
+@dataclass
+class ImageInfo(ImageInfoBase):
+    thumbnail_info: ImageInfoBase
+    thumbnail_url: Optional[str] = None
+    thumbnail_file: Optional[EncryptedFile] = None
+
+
+@dataclass
+class FileInfo:
+    mimetype: str
+    size: int
+    thumbnail_info: ImageInfoBase
+    thumbnail_url: Optional[str] = None
+    thumbnail_file: Optional[EncryptedFile] = None
+
+
+@dataclass
+class AudioInfo:
+    duration: int
+    mimetype: str
+    size: int
+
+
+@dataclass
+class LocationInfo:
+    thumbnail_info: ImageInfoBase
+    thumbnail_url: Optional[str] = None
+    thumbnail_file: Optional[EncryptedFile] = None
+
+
+@dataclass
+class VideoInfo(ImageInfoBase):
+    duration: int
+    thumbnail_info: ImageInfoBase
+    thumbnail_url: Optional[str] = None
+    thumbnail_file: Optional[EncryptedFile] = None
+
+
+@dataclass
+class PreviousRoom:
+    room_id: str
+    event_id: str
+
+
+@dataclass
+class Signed:
+    mxid: str
+    signatures: Dict[str, Dict[str, str]]
+    token: str
+
+
+@dataclass
+class Invite:
+    display_name: str
+    signed: Signed