diff --git a/src/bot/types/__init__.py b/src/bot/types/__init__.py
new file mode 100644
index 0000000..16741c9
--- /dev/null
+++ b/src/bot/types/__init__.py
@@ -0,0 +1,41 @@
+from datetime import date, datetime, timezone
+
+from .embed import (
+    Embed,
+    RichEmbed,
+    ImageEmbed,
+    VideoEmbed,
+    GifvEmbed,
+    ArticleEmbed,
+    LinkEmbed,
+)
+
+__all__ = [
+    "Embed",
+    "RichEmbed",
+    "ImageEmbed",
+    "VideoEmbed",
+    "GifvEmbed",
+    "ArticleEmbed",
+    "LinkEmbed",
+    "ISO8601Timestamp",
+]
+
+
+class ISO8601Timestamp:
+    def __init__(self, dt: date | datetime) -> None:
+        self.dt = dt
+
+    def __str__(self) -> str:
+        return self.dt.isoformat()
+
+    def __repr__(self) -> str:
+        return f"ISO8601Timestamp({repr(self.dt)})"
+
+    @classmethod
+    def today(cls):
+        return cls(date.today())
+
+    @classmethod
+    def now(cls, tz: timezone | None):
+        return cls(datetime.now(tz))
diff --git a/src/bot/types/embed.py b/src/bot/types/embed.py
new file mode 100644
index 0000000..77c59aa
--- /dev/null
+++ b/src/bot/types/embed.py
@@ -0,0 +1,166 @@
+from typing import Annotated, Literal, TypedDict
+from annotated_types import Len
+
+import discord
+
+from .timestamp import ISO8601Timestamp
+
+
+class _EmbedFooterReq(TypedDict):
+    text: str
+
+
+class _EmbedFooterOpt(TypedDict, total=False):
+    icon_url: str
+    proxy_icon_url: str
+
+
+class EmbedFooter(_EmbedFooterReq, _EmbedFooterOpt):
+    pass
+
+
+class _EmbedImageReq(TypedDict):
+    url: str
+
+
+class _EmbedImageOpt(TypedDict, total=False):
+    proxy_url: str
+    height: int
+    width: int
+
+
+class EmbedImage(_EmbedImageReq, _EmbedImageOpt):
+    pass
+
+
+class _EmbedThumbnailReq(TypedDict):
+    url: str
+
+
+class _EmbedThumbnailOpt(TypedDict, total=False):
+    proxy_url: str
+    height: int
+    width: int
+
+
+class EmbedThumbnail(_EmbedThumbnailReq, _EmbedThumbnailOpt):
+    pass
+
+
+class EmbedVideo(TypedDict, total=False):
+    url: str
+    proxy_url: str
+    height: int
+    width: int
+
+
+class EmbedProvider(TypedDict, total=False):
+    name: str
+    url: str
+
+
+class EmbedAuthor(TypedDict, total=False):
+    name: str
+    url: str
+    icon_url: str
+    proxy_icon_url: str
+
+
+class _EmbedFieldReq(TypedDict):
+    name: str
+    value: str
+
+
+class _EmbedFieldOpt(TypedDict, total=False):
+    inline: bool
+
+
+class EmbedField(_EmbedFieldReq, _EmbedFieldOpt):
+    pass
+
+
+class _EmbedBase(TypedDict, total=False):
+    title: str
+    description: str
+    url: str
+    timestamp: ISO8601Timestamp
+    color: discord.Colour | int
+    footer: EmbedFooter
+    image: EmbedImage
+    thumbnail: EmbedThumbnail
+    video: EmbedVideo
+    provider: EmbedProvider
+    author: EmbedAuthor
+    fields: Annotated[list[EmbedField], Len(max_length=25)]
+
+
+class RichEmbedImpl(TypedDict):
+    type: Literal["rich"]
+
+
+class RichEmbed(_EmbedBase, RichEmbedImpl):
+    pass
+
+
+class ImageEmbedImpl(TypedDict):
+    type: Literal["image"]
+
+
+class ImageEmbed(_EmbedBase, ImageEmbedImpl):
+    pass
+
+
+class VideoEmbedImpl(TypedDict):
+    type: Literal["video"]
+
+
+class VideoEmbed(_EmbedBase, VideoEmbedImpl):
+    pass
+
+
+class GifvEmbedImpl(TypedDict):
+    type: Literal["givf"]
+
+
+class GifvEmbed(_EmbedBase, GifvEmbedImpl):
+    pass
+
+
+class ArticleEmbedImpl(TypedDict):
+    type: Literal["article"]
+
+
+class ArticleEmbed(_EmbedBase, ArticleEmbedImpl):
+    pass
+
+
+class LinkEmbedImpl(TypedDict):
+    type: Literal["link"]
+
+
+class LinkEmbed(_EmbedBase, LinkEmbedImpl):
+    pass
+
+
+class PollResultEmbedImpl(TypedDict):
+    type: Literal["poll_result"]
+
+
+# TODO: There are a bunch of fields for poll results, but I *really*
+# don't need these at the moment:
+# https://discord.com/developers/docs/resources/message#embed-fields-by-embed-type-poll-result-embed-fields
+
+
+class PollResultEmbed(_EmbedBase, PollResultEmbedImpl):
+    pass
+
+
+Embed = (
+    RichEmbed
+    | ImageEmbed
+    | VideoEmbed
+    | GifvEmbed
+    | ArticleEmbed
+    | LinkEmbed
+    | PollResultEmbed
+)
diff --git a/src/bot/types/timestamp.py b/src/bot/types/timestamp.py
new file mode 100644
index 0000000..8b9444e
--- /dev/null
+++ b/src/bot/types/timestamp.py
@@ -0,0 +1,20 @@
+from datetime import date, datetime, timezone
+
+
+class ISO8601Timestamp:
+    def __init__(self, dt: date | datetime) -> None:
+        self.dt = dt
+
+    def __str__(self) -> str:
+        return self.dt.isoformat()
+
+    def __repr__(self) -> str:
+        return f"ISO8601Timestamp({repr(self.dt)})"
+
+    @classmethod
+    def today(cls):
+        return cls(date.today())
+
+    @classmethod
+    def now(cls, tz: timezone | None):
+        return cls(datetime.now(tz))