A backpack is a necessity for almost every occasion where you need to tote stuff, and my trusty JanSport has taken me both across campus and all over my city when I ride the bus.
While my review is of the JanSport Spectrum, my backpack appears to be an older iteration of the pack. It makes sense - I got this backpack in 2001.
However, what both my backpack and the Spectrum share are the same design and same capability to pack it in.
Happily its main pocket is large enough for a laptop, and it also has two other sections for effective carrying wherewithal.
The JanSport Spectrum, and its previous iterations, have three sections: One main section, a smaller midsized section and a very small section primarily to carry pens and other stuff. I am certain you can fit a pencilbox in the smallest section, but it might be a squeeze.
What I like about it is that it is right-sized for campus and any other need I have, and while this means I might need to carry lighter than a pack to literally live out of, that still is not a problem.
I've also found that the pack has been fairly durable. I don't treat my backpack roughly, but with its canvas construction, I have no rips or tears on it.
My only negative is the way a heavy load sits on the shoulders and back. This backpack does not come with a strap that goes across your chest or belly, so your shoulders take all the work.
However, this should not deter you from picking up a JanSport. It has done me well.