Reading Notes on Landau and Lifshitz
A note on L&L's style. It seems that Landau and Lifshitz write in a manner that's the mirror opposite of abstract mathematics. Instead of "theorem" and then "proof", they provide a "proof" followed by a "theorem" (but do not announce it with a bold Theorem prefix). Consequently, reading L&L amounts to trying to figure out what claims are made in a section, then reconstructing the proof.