The Concept Method
Professional English Practice takes you from your first words to full command of the language, book by book. Calibrated Speech does the same for how you sound while you say it.
Four books, one continuous system, from your first sentence in English to full C2 command, plus a dedicated book on the phrasal verbs that trip up even fluent professionals.
A pronunciation manual sequenced A1 to C2, built on two yardsticks: being understood, and being taken seriously.