# Get Reading Statistics

Retrieve reading statistics for a date range.

**Endpoint**: `GET /api/analytics/reading-stats`
**Auth**: Required

## Query Parameters

| Parameter | Type | Required | Description |
|-----------|------|-----------|-------------|
| start_date | string | No | Start date (ISO 8601 format) |
| end_date | string | No | End date (ISO 8601 format) |

## Request Headers

| Header | Type | Required | Description |
|--------|------|-----------|-------------|
| Authorization | string | Yes | Bearer token |

### Example Request

```http
GET /api/analytics/reading-stats?start_date=2026-01-01&end_date=2026-01-31
Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...
```

## Response (200 OK)

```json
{
  "pages_read": 1250,
  "books_completed": 5,
  "reading_time_hours": 42.5,
  "sessions_count": 28,
  "average_session_minutes": 91
}
```

## Error Responses

| Code | Description |
|------|-------------|
| 400 | Invalid date format |
| 401 | Invalid or expired token |
