This report, prepared for the BMP3006 module, delves into the effectiveness of digital marketing and social media marketing. It begins by defining marketing, the marketing mix, the communication mix, digital marketing, and social media marketing, highlighting their significance in contemporary businesses. The report then provides a detailed analysis of the communication mix, with examples and justifications for the effectiveness of Facebook and Instagram as social media platforms. It includes screenshots of effective campaigns, elaborating on why social media marketing is crucial for business success. The report uses Zara as a case study, providing a practical context for the theoretical concepts discussed. The analysis includes an examination of digital marketing and social media marketing and is supported by academic references.