If you think marketing isn't important for start-ups, think again. Marketing drives sales for businesses of all sizes by ensuring that customers think of their brand when they want to buy. Marketing helps a new business to become known, and to attract and retain customers so it can survive and grow.
The ability to convince people to spend their money is probably the most valuable skill in business. To some, it comes naturally. Others get better with time. There are numerous techniques that can be learned. Crucially, you need to be able to be able to convincingly explain the benefits of your products/services, overcome objections and fears, recognise customer buying signals and close the sale.
Marketing must be part of the everyday fabric of your business. You need to assess your sales and marketing activity continually, learn from your mistakes, build on your successes - and remain open to new methods.