The Concept Method

One collection. One 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.

Professional English Practice

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.

It's Not Only a Grammar Book front cover, A1-A2
It's Not Only a Grammar Book back cover, A1-A2

Professional English Practice · Book 1 · CEFR A1-A2

It's Not Only a Grammar Book

English Communication for Professionals

Forty-four units repair the grammar you already half know: the verb to be, the present, the past, the three futures, the modals, and the relative clause that lets you stop speaking in short separate sentences. Each unit prints the wrong sentence beside the right one, because you cannot stop making a mistake you have never seen written down.

For the professional who is told he is a beginner and knows he is not. You read the email, you follow the meeting, and then somebody turns and asks you something and the words are gone. They were there yesterday. Nothing you say is broken enough for anyone to correct, so nobody ever has.

  • Introduce yourself and your work with confidence
  • Handle greetings, requests, and everyday small talk
  • Turn memorized phrases into words you actually mean
  • Speak your first real conversations without freezing
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It's Not Only a Grammar Book front cover, B1-B2
It's Not Only a Grammar Book back cover, B1-B2

Professional English Practice · Book 2 · CEFR B1-B2

It's Not Only a Grammar Book

English Communication for Professionals

Forty units carry you through the machinery of real fluency: the full past and future systems, the unreal and the hypothetical, modality and deduction, the advanced passive and reported speech, and the structures that let you emphasize, concede, and read the room.

For professionals who can already get by, but want to stop simplifying to stay safe and start steering the conversation instead.

  • From getting by to saying what you actually mean
  • Explaining and justifying your reasoning, not just stating it
  • Holding your own when the meeting speeds up
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It's Not Only a Grammar Book front cover, C1
It's Not Only a Grammar Book back cover, C1

Professional English Practice · Book 3 · CEFR C1

It's Not Only a Grammar Book

English Communication for Professionals

Thirty-six units move through the verb system, modality, emphasis, cohesion, reporting, and register, ending in the reformulation and lexical control that mark real fluency, built for the whole professional world, not only executives.

At C1 the grammar is mostly there; what's missing is control. This book is about the choices that carry weight: who a sentence blames, how certain you sound, what lands first and last. Accuracy becomes strategy.

  • Control tone, stance, and emphasis on purpose
  • Concede ground without losing your position
  • Foreground the one thing that matters
  • Report and attribute with precision
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It's Not Only a Grammar Book front cover, C2
It's Not Only a Grammar Book back cover, C2

Professional English Practice · Book 4 · CEFR C2

It's Not Only a Grammar Book

English Communication for Professionals

Twenty-two units move from aspect and formal conditionals through modality, marked word order, cohesion, and reporting, ending in the competence that defines the level: saying the same thing three different ways, on purpose, for three different audiences.

C2 is the C1 canon revisited for nuance: reformulation, marked structure, irony and understatement, the exact shade of a near-synonym. This book is about saying the same thing three ways and choosing the one the moment needs.

  • Reformulate the same idea three ways
  • Use inversion and clefts for rhetorical effect
  • Say less to mean more: irony, litotes, understatement
  • Choose the word with the exact weight
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It's Not Only a Phrasal Verb List front cover, B1-C2
It's Not Only a Phrasal Verb List back cover, B1-C2

Professional English Practice · Book 5 · CEFR B1-C2

It's Not Only a Phrasal Verb List

English Communication for Professionals

Organized by particle rather than topic: the same handful of particles, like up, out, and off, recur across dozens of verbs with a traceable core meaning, so recognition transfers instead of resetting with every new verb.

Every other phrasal verb book hands you an endless list and asks you to memorize it. The list never ends, so learners give up and reach for the stiff Latinate word instead. This book does the opposite: you learn twenty particles, not two thousand verbs, and the meaning falls out of the particle. You stop recalling. You start predicting.

  • Read the particle and predict a verb you've never seen
  • Choose the phrasal verb a native would use, not the Latinate one
  • Catch phrasal verbs in fast speech instead of missing them
  • Turn twenty particles into hundreds of verbs you can deploy
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Calibrated Speech

A pronunciation manual sequenced A1 to C2, built on two yardsticks: being understood, and being taken seriously.

Calibrated Speech front cover, A1-C2
Calibrated Speech back cover, A1-C2

Calibrated Speech · CEFR A1-C2

Calibrated Speech

American English for Brazilian Speakers

A level-by-level pronunciation manual sequenced A1 to C2, built on two yardsticks, intelligibility and credibility. Moves from the sounds that break meaning, th, clean final consonants, ship versus sheep, through rhythm and the American R, to the melody and register control that read as credible to American listeners.

For Brazilian Portuguese speakers whose message lands, but whose accent still shapes how seriously they're taken in the room.

  • Sound-by-sound sequencing, A1 to C2
  • Diagnostic passage and a fastest-fixes cheat sheet
  • Full practice sets with a complete answer key
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