As an author, you are going to have to show your face sooner or later. You might as well invest in that one recognisable headshot now. Putting a face to your name makes you seem more trustworthy and a single image that you use everywhere gives you an easy to recognise brand.
Also, a professional image of you can be used for social media profiles as well as your about page.
For more platform building insights check our full and free Author Platform guidebook.