Author box will show on Post / Review, also on Page. To Modify content of author box, please go to Users→Edit Users→Contact Info & About Your Self. There are several option you can fill.
If you not feeling that this author box is necessary, you can also disable it.
- Page : if you creating page with Default Template, you have option to hide author box.
- Blog : to hide author box on post, you can go to Jmagz Dashboard→Post Option→Hide Author Box
- Review : to hide author box on review, you can go to Jmagz Dashboard→Review Option→Hide Author Box