Growth marketing is a marketing strategy that focuses on driving rapid and sustainable growth for businesses. Unlike traditional marketing, which tends to focus on building brand awareness and generating leads, growth marketing is all about using data, experimentation, and technology to identify and capitalize on opportunities for growth.

The key principles of growth marketing include:

1. Data-driven decision making: Growth marketing relies heavily on data and analytics to inform decisions. This includes analyzing customer behavior, testing different strategies, and tracking metrics like conversion rates and customer acquisition costs.
   
   
2. Experimentation: Growth marketing is all about testing and experimenting with different strategies to identify what works best. This might involve trying out different marketing channels, changing pricing or messaging, or optimizing the user experience.
   
   
3. Continuous optimization: Growth marketing is an ongoing process of optimization and refinement. This involves constantly monitoring performance, identifying areas for improvement, and making changes to improve results.
   
   
4. Customer-centric approach: Growth marketing focuses on understanding and meeting the needs of customers. This involves creating targeted messaging and offers, providing excellent customer service, and creating a seamless user experience.
   

Some common tactics used in growth marketing include viral marketing, referral programs, content marketing, social media advertising, email marketing, and search engine optimization.

Overall, growth marketing is all about driving sustainable growth by taking a data-driven, customer-centric approach to marketing. By continuously experimenting, optimizing, and refining their strategies, businesses can achieve rapid growth and scale their business more effectively.