ICO marketing means promoting a crypto project before its token sale so more people know about it and feel confident to invest. It starts with creating a clear website and whitepaper, then growing a community on platforms like Telegram, Discord, and Twitter. Projects also use social media posts, influencer support, PR articles, SEO, and paid ads to reach a wider audience. The main goal is to build trust, explain the project clearly, and show real value to potential investors. In 2025, investors expect transparency, active communities, and regular updates, so communication plays a big role in success. Many companies offer ICO marketing services today, and one of the leading names that supports projects with professional guidance is Osiz, helping them move forward more smoothly.