If you want to build a WordPress website for colleges, universities, schools library, knowledge base channel, consider Education Hub, a free theme from WEN Themes.
Education Hub comes with a "standard" design, I mean, it looks really suitable for a learning environment with a serious manner. Besides, this free WordPress theme is really easy to use and set up so that even a non-professional user can find it simple.
It's no doubt that Education Hub is a good choice for a simple education site or any sharing and learning channel.
But overall, this free WordPress theme is a good foundation to start every educational website, library for students, or studying hub. From this theme, users can develop their own site with more things easily and use it smoothly.
On the other hand, the speed is quite low on mobile devices and SEO hasn't been optimized well yet. So you should think carefully about these matters.