# 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 |
