diff --git a/inventory/models/work_log.py b/inventory/models/work_log.py
new file mode 100644
index 0000000..d33d4cd
--- /dev/null
+++ b/inventory/models/work_log.py
@@ -0,0 +1,25 @@
+from typing import List, Optional
+
+from sqlalchemy import Boolean, DateTime, ForeignKey, Integer, Unicode
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from crudkit.core.base import Base, CRUDMixin
+
+class WorkLog(Base, CRUDMixin):
+    __tablename__ = "work_log"
+
+    start_time: Mapped[Optional[DateTime]] = mapped_column(DateTime)
+    end_time: Mapped[Optional[DateTime]] = mapped_column(DateTime)
+
+    complete: Mapped[Optional[bool]] = mapped_column(Boolean, nullable=False, default=False)
+
+    contact: Mapped[Optional['User']] = relationship('User', back_populates='work_logs')
+    contact_id: Mapped[Optional[int]] = mapped_column(Integer, ForeignKey("user.id"), nullable=True, index=True)
+
+    updates: Mapped[List['WorkNote']] = relationship('WorkNote', back_populates='work_log', cascade='all, delete-orphan')
+
+    work_item: Mapped[Optional['Inventory']] = relationship('Inventory', back_populates='work_logs')
+    work_item_id: Mapped[Optional[int]] = mapped_column(Integer, ForeignKey('inventory.id'), nullable=True, index=True)
+
+    def __repr__(self):
+        return f"<WorkLog(id={self.id}, contact={repr(self.contact.first_name)} {repr(self.contact.last_name)})>"
diff --git a/inventory/models/work_note.py b/inventory/models/work_note.py
new file mode 100644
index 0000000..17609d9
--- /dev/null
+++ b/inventory/models/work_note.py
@@ -0,0 +1,16 @@
+from sqlalchemy import DateTime, UnicodeText, func
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from crudkit.core.base import Base, CRUDMixin
+
+class WorkNote(Base, CRUDMixin):
+    __tablename__ = "work_note"
+
+    content: Mapped[str] = mapped_column(UnicodeText, nullable=False)
+    timestamp: Mapped[DateTime] = mapped_column(DateTime, default=func.now(), server_default=func.now())
+
+    work_log: Mapped['WorkLog'] = relationship('WorkLog', back_populates='updates')
+
+    def __repr__(self) -> str:
+        preview = self.content[:30].replace("\n", " ") + "..." if len(self.content) > 30 else self.content
+        return f"<WorkNote(id={self.id}), log_id={self.work_log_id}, ts={self.timestamp}, content={preview!r}>"