diff --git a/templates/types.go b/templates/types.go
index 40d3eea..28a2a44 100644
--- a/templates/types.go
+++ b/templates/types.go
@@ -144,3 +144,41 @@ type UnsafeHTML string
 func (u UnsafeHTML) ToComponent() templ.Component {
 	return templ.Raw(string(u))
 }
+
+// Reader types
+type ReaderMetadata struct {
+	MediaItemID    string `json:"media_item_id"`
+	Title          string `json:"title"`
+	Author         string `json:"author"`
+	CoverImagePath string `json:"cover_image_path"`
+	LibraryType    string `json:"library_type"`
+	MimeType       string `json:"mime_type"`
+	FilePath       string `json:"file_path"`
+	TotalPages     int    `json:"total_pages"`
+	ChapterCount   int    `json:"chapter_count"`
+}
+
+type ReadingProgress struct {
+	ID          string
+	MediaItemID string
+	UserID      string
+	CurrentPage int
+	TotalPages  int
+	Percentage  float64
+	EpubCfi     string
+	CreatedAt   time.Time
+	UpdatedAt   time.Time
+}
+
+type Bookmark struct {
+	ID            string
+	MediaItemID   string
+	UserID        string
+	PageNumber    *int
+	ChapterNumber *int
+	CfiPosition   string
+	Title         string
+	Position      string
+	Notes         string
+	CreatedAt     time.Time
+}