So I'm presuming you're limiting this discussion to technical books, and not fiction, etc. As if you're not limiting it to non-fiction, then yes you're missing

So I'm presuming you're limiting this discussion to technical books, and not fiction, etc. As if you're not limiting it to non-fiction, then yes you're missing out. If you're limiting it to non-fiction, then yes. You're still missing out. Some concepts take more than a blog entry to understand fully. You might get some aspect of a concept but not all the facets.