Perhaps Check Online College Course Materials (Score 1)

Cookbooks can be trouble because without insight into the advantages and vulnerabilities of a circuit, it might simply fail.

In radio frequency work, we often added variable attenuators in the signal path, to allow tuning. To know the attenuator range though, required creating a spreadsheet to track worst case signal levels forward and backward to the attenuators.

"The kind of knowledge that gives you deep understanding of analog circuits design. Can anyone suggest good books and maybe where to order them from?"

Many of these sources are going to be focused on integrated circuit design, but they are still great sources when combined with course notes.

You should be able to find course notes online from MIT or other universities. Universities have been videotaping professors for more than 20 years. Textbooks are terse. It is amazing to watch someone like Anton Mavretic casually calculate impedance and gain for various circuits.

Aside from the text suggestions here, you might find good references in online course descriptions and class notes.