I agree with this offering a 1 hour course FREE as an introduction. Make it a great short course, advertising for your paid courses. I have found students give high marks for FREE courses that are well designed. They will pay for your longer courses as they are more certain of your skill delivering content. Keep in mind, you cannot advertise to FREE customers. Their emails are not made available to you. So the only way to advertise within Udemy is to include a video Ad inside your FREE Course. You can create a coupon as well to encourage registration. However, the coupon would require a monthly update to the Advertisement as the coupon code will have change each month. It is worth experimenting with and results depend upon target demographic.
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