Promote your ebook by using ebook promotion services and hiring a recognised book promotion business. Use social media platforms, email newsletters, guest blogging, and book review websites. Consider creating promotional campaigns, providing discounts, and engaging in virtual events or podcasts relevant to your book's genre. Hire influencers, authors or book promotion company in your niche to gain more exposure. Optimise your book's metadata and keywords to increase visibility on online platforms. Remember, a balanced combination of marketing methods suited to your target demographic is essential for successful ebook promotion.