Ask HN: are there any concise IT books out there?

I recently decided to make the shift from physics to IT. In physics we would have very concise (less than 100 page) books that would cover things like Fourier Transforms, Special Relativity etc. These would usually be published by the Cambridge or Oxford university presses and would be highly theoretical and compressed.

In IT I've been amazed by how many 500 page behemoths that exist to describe each particular framework in excruciating detail. I want to get a tight, in-depth explanation of MVC, design patterns, databases etc, in a short period of time. Are there any publishers of highly compressed books out there for IT?