---
title: relativeWordSpacingChange
framework: appintents
role: symbol
role_heading: Instance Property
path: appintents/assistantschemas/booksenum/relativewordspacingchange
---

# relativeWordSpacingChange

The relative change in word spacing for rendering a book.

## Declaration

```swift
var relativeWordSpacingChange: some AssistantSchemas.Enum { get }
```

## Overview

Overview Use Swift macros that generate additional properties and add protocol conformance for your app enum implementation. The following example shows an app enum that conforms to the .books.relativeWordSpacingChange schema: @AppEnum(schema: .books.relativeWordSpacingChange) enum BookRelativeWordSpacingChange: AppEnum {     case small     case large

static var caseDisplayRepresentations: [BookRelativeWordSpacingChange: AppIntents.DisplayRepresentation] = [         .small: "Increase",         .large: "Decrease",     ] } For more information about the .books app intent domain, see doc:Making-ebook-actions-available-to-siri-and-apple-intelligence. For general information about app intent domains, see doc:Integrating-actions-with-siri-and-apple-intelligence.