There are many websites that offer a wide variety of backgrounds that you can use for your graduation thesis presentation.
Use the best School PPT Backgrounds & PowerPoint templates and Google Slides themes to engage your students and educators with your presentations. All slide designs are easy to edit and 100% free to use.
School Notebook background design is nice for school and classroom presentations. This free powerpoint template has consisted of music notes, letters and numbers over the notebook background design that can be used in music presentations, thesis studies, school and classroom events.
This free Back To School Powerpoint template is a nice design for your school presentations. This background has a lovely design with colorful books, apple and a candy, that can be useful for any presentations about school planning, school resources or school homeworks.