The Writing Toolkit
Fifteen reference pages for the mechanics and architecture of English writing — the pages to open while you write, revise, and edit.
Mechanics
Punctuation: The Complete Guide
Punctuation is not decoration — it is the traffic system of your sentences. This guide covers every mark you need, what it does, and the errors that make readers stumble.
OpenCapitalization Rules: When to Use Capital Letters
English capitalization is a small system with strict rules. Master the ten cases below and your writing will look careful before a single idea is judged.
OpenSentences
Sentence Structure: Building Blocks and Types
Every English sentence is built from the same kit: a subject, a verb, and patterns for adding the rest. Know the four sentence types and you can build — and repair — anything.
OpenActive vs Passive Voice: Choosing on Purpose
Neither voice is 'better'. The active puts an actor in lights; the passive puts the result there. Weak writers default to one; strong writers choose per sentence, for emphasis and for honesty.
OpenParagraphs
How to Write an English Paragraph
One idea, fully developed, in a shape readers trust: topic sentence, support, conclusion. This page is the whole craft of the paragraph on one screen.
OpenFlow
Linking Words: The Complete Bank, by Job
Linking words are instructions to the reader about how two ideas relate. Use the word that matches the real relationship — this bank is organized by job, not by alphabet.
OpenTransition Words for Essays: Moving Between Ideas
Linking words glue sentences; transition words move the whole essay. They announce your architecture — here is another point, here is the turn, here is the verdict — so the reader always knows where they are in your argument.
OpenParagraph Cohesion: Reference Chains and the Given–New Contract
Cohesion is how a paragraph's sentences hold hands: pronouns pointing unambiguously, key words echoing, and each sentence opening with what the reader already knows and closing with what is new.
OpenRegister
Formal vs Informal English: A Side-by-Side Guide
Register is the costume your facts wear. The same message must change clothes for a friend, a colleague, and a director — here is the whole wardrobe, side by side.
OpenRepairs
Common Writing Mistakes: The Top Fifteen, Fixed
Fifteen errors account for most of what makes learner writing look like learner writing. Each one below: the error, why it happens, and the fix. Eliminate these and your text jumps a level overnight.
OpenStyle
Sentence Variety: Length, Openers, and Rhythm
Monotonous prose is rarely a vocabulary problem — it is a rhythm problem. Variety comes from three dials: sentence length, sentence openers, and sentence types. Here is how to turn each one.
OpenConcise Writing: Cutting Without Losing Meaning
Wordiness is not a style — it is unedited thought. This page holds the conversion table and the four cutting rules that turn padded prose into dense, professional writing.
OpenWords
Word Choice: Precision, Register, and Dead Words
Style is mostly word choice at close range: the exact verb instead of the vague one, the concrete noun instead of the fog, and the removal of words that have died from overuse.
OpenCollocations for Writing: Words That Belong Together
Native writing is built from partnerships: we make decisions, do homework, take risks, and reach conclusions. Learn the partnerships and your sentences stop sounding translated.
OpenEssays
Essay Organization: Blueprints for Every Essay Type
Essays are not written; they are assembled from blueprints. Here are the five standard architectures — with the introduction formula, body logic, and closing move for each — plus the planning habits that keep them standing.
Open