If that's what your looking for, I find books that are adopted as university textbooks are best. i.e. C Programming Modern Approach by KN King, Object Pascal Handbook by Marco Cantu. Generally I'm staying away from O'Reilly, No Starch Press etc.. They all feel like books created by pasting a bunch of blog posts together. University texts are usually twice the price, but IMHO worth it - they are made for teaching knowledge, not just sharing it.
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