How to Find Your Book's Voice: The Style & Tone Guide

Every great book has a distinct voice. A self-help book needs to sound empathetic and encouraging, while a thriller needs to sound tense and fast-paced.

PublishFlow’s AI is incredibly powerful, but if you don't give it specific guidance, it will default to a standard, neutral tone. The Style and Tone Guide (found inside your Book Requirement Document) is how you banish the generic "AI voice" and give your manuscript a real soul.

The Golden Rule: Style & Tone vs. Writing Instructions

Before we dive in, it is vital to understand the difference between this feature and your Writing Instructions:

• Writing Instructions dictate the structure of your book. They tell the AI what to write (e.g., how to interpret the outline, word counts, formatting, lists).
• The Style & Tone Guide dictates the voice of your book. It tells the AI how to write it (e.g., perspective, emotion, sentence structure, and vocabulary).

3 Ways to Create Your Style & Tone Guide

When you open the Style and Tone tab, you don't have to write the guide from scratch. PublishFlow gives you three ways to generate it:

1. Auto-Generate: Let PublishFlow automatically create a style guide based on the overall context of your book title and description.
2. Write a Prompt: Tell the AI exactly what you want. For example: "Write in the style of an expert who is also a supportive coach. Use short, punchy sentences."
3. Use a Sample Text (Highly Recommended!): This is our most powerful method. You can paste a sample text from your favorite author, and PublishFlow will analyze it. It won't copy the text, but it will extract the essence of the writing style and create a unique profile that imitates that exact vibe. Pro Tip: The sweet spot for a sample text is around 1,000 words. Using much more or much less makes the extraction process inefficient.

The Anatomy of Your Style Guide

Once generated, your Style and Tone Guide is broken down into two main sections:

1. Core Style Attributes

At the top, you will see four specific blocks that the AI has automatically filled out based on your prompt or sample text:

• Tone: The emotional register (e.g., Inspirational, Authoritative, Encouraging)
• Voice: The role the author is playing (e.g., Mentor and Guide)
• Language: The reading level (e.g., Intermediate)
• POV (Point of View): The perspective (e.g., First Person, Third Person)

Even though the AI fills these out, you are in full control. You can click into any of these boxes and manually change them at any time.

2. Style Instructions

Below the attributes is a detailed text box containing the actual instructions the AI writer will follow.

A good Style Instruction gets incredibly specific about sentence structure and flow. For example, it might say: "Structure paragraphs to follow a 'problem-solution-encouragement' flow," or "Avoid overly academic jargon; instead, use clear, accessible language." ## Fine-Tuning Your Voice Your generated Style and Tone Guide is never locked in. You can always optimize it before you start writing your chapters:

• Manual Edits: You can click directly into the Style Instructions text box and type your own rules. Want to make sure the AI uses British English spelling? Just type "Always use British English" right into the box!
• Use the AI Assistant: If the generated style is close but not quite perfect, use the AI Assistant chat on the right side of your screen. Tell it, "Make the tone a little more sarcastic and funny," and let the Assistant rewrite the guide for you.
• Start Over: If you completely dislike the generated style, just click the Remove button in the top right corner. This will wipe the slate clean so you can start fresh with a new sample text or prompt.

A Quick Troubleshooting Tip: If you ever notice your generated chapters starting or ending with the exact same repetitive phrases (like always summarizing the previous chapter), a strict rule hidden in your Style & Tone Guide or Writing Instructions might be the cause. Check out our guide on Why do my chapters have a repetitive structure? to learn how to easily spot and fix this!

Updated on: 13/05/2026