Summary  
This chapter explains how to define a module’s unique public interface (its “USP”), position it appropriately within a larger system architecture, and enforce a consistent coding style (tone of voice) so that the component stands out and remains recognizable.  

General domain of usage  
Library and API design

A clear **USP** sets your brand apart, offering a distinct reason for customers to choose you. It reflects what makes your business unique, whether it's premium quality, affordability, or innovation. Strong market positioning ensures alignment between your brand identity and audience expectations, whether as a luxury option, disruptor, or value-driven choice.

A consistent **tone of voice** ensures brand messages reflect personality across all platforms. Whether sophisticated and warm or straightforward and friendly, a defined voice builds trust and relatability. Brands like Dollar Shave Club highlight how a strong USP and a distinct tone can differentiate a business and foster deeper audience connections.

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Developing a Unique Selling Proposition (USP) & Defining Brand Voice

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Developing a Unique Selling Proposition (USP) & Defining Brand Voice