Five Things I Check in Every Manuscript I Edit

After editing over 1,600 manuscripts, I have a system. Every editor does, though nobody's looks quite the same. Mine has been refined over twelve years of finding the same kinds of errors hiding in the same kinds of places, and I thought it might be useful to share what I actually look for.

These aren't generic tips like "check your spelling." These are the specific things I've learned to hunt for because they're the ones that slip past authors most consistently.

1. Character name consistency

This is the one that surprises authors the most. You'd think you'd know what your own characters are called, and you do, in your head. But on the page, things drift.

I once edited a fantasy novel where a secondary character was called Aldric in the first half and Aldrick in the second. The author had no idea until I flagged it. In another manuscript, a character's surname changed from O'Brien to O'Brian in chapter twelve and stayed that way for the rest of the book. And I regularly see characters whose eye colour, hair colour, or physical descriptions change partway through, usually because the author revised the character's appearance early on but forgot to update later references.

The first thing I do with any manuscript is build a character sheet. Every name, every physical description, every relationship. Then I check them all for consistency from beginning to end. It's painstaking, but it catches things every single time.

2. Timeline accuracy

Timelines are where even meticulous authors come unstuck, especially in novels with multiple viewpoints or non-linear structures.

I recently edited a thriller where a character was kidnapped on a Tuesday, held for "three days," and then rescued on a Thursday. That's two days, not three. In a romance novel, two characters met in September, dated for "a few weeks," and then attended a Christmas party together, which the text described as happening "a month later." A few weeks plus a month doesn't get you from September to December.

I map out the timeline of every book I edit. For straightforward narratives, this might be simple. For complex plots with flashbacks, time jumps, and multiple storylines, it becomes a detailed spreadsheet. The number of timeline errors I find in published-ready manuscripts would alarm you.

3. Tense consistency

Most novels are written in past tense. Some are written in present tense. Both are fine. What's not fine is switching between them without realising it.

This happens most often in action scenes and moments of high tension. An author writing in past tense will unconsciously shift to present tense when things get exciting because it feels more immediate. "She ran down the corridor and throws open the door." Your brain barely registers the shift when you're reading your own work, but a reader will feel something is off even if they can't pinpoint what.

I also watch for tense consistency in backstory sections. When a past-tense narrative dips into backstory, authors sometimes lose track of which "past" they're in. The backstory needs to be in past perfect ("she had worked there for years") before transitioning back to simple past, and getting the transition wrong creates a muddled sense of when things happened.

4. Dialogue attribution

This is a technical one, but it matters more than most authors realise. Clear dialogue attribution, making it obvious who's speaking at all times, is essential for readability.

The most common problem I see is long exchanges between two characters where the attributions drop away and, by the bottom of the page, it's genuinely unclear who said what. Authors know who's speaking because they wrote it. Readers are counting lines of dialogue, trying to track back to the last "he said" or "she said," and losing the thread of the conversation.

I also check for impossible dialogue tags. You can't "laugh" a sentence. You can't "smile" words. You can't "shrug" a line of dialogue. "That's hilarious," she laughed, is technically wrong because laughing isn't a method of speaking. These are small things, but they accumulate. A reader might not consciously notice one, but fifty of them across a novel create a vague sense that something isn't quite right.

5. Paragraph and scene transitions

This is the one I added to my checklist after the first few years, once I noticed how often it was a problem. Transitions between paragraphs, between scenes, and especially between chapters, are where manuscripts most often feel rough or disjointed.

A common issue is what I call the "teleporting character." A scene ends with a character in the kitchen, and the next paragraph begins with them in the car with no transition. The author knows how they got there. The reader doesn't.

I also look for accidental repetition across transitions. It's surprisingly common for the last sentence of a chapter to essentially say the same thing as the first sentence of the next chapter, because the author wrote them in different sessions and forgot where they'd left off. "She knew everything was about to change" followed by "Everything was changing" at the top of the next page. It reads like a hiccup.

Scene transitions are also where pacing issues show up most clearly. A high-tension scene followed by three paragraphs of mundane description before the next plot point kills the momentum. I flag these so the author can decide whether the slow section serves a purpose (sometimes it does, as a deliberate breather) or whether it's just filler that crept in during drafting.

The common thread

If you've noticed a theme here, it's this: the errors that matter most aren't the ones spell-check catches. They're the structural, consistency-level issues that only emerge when someone reads the entire manuscript with fresh eyes and a systematic approach.

Self-editing is valuable and important, and I'd encourage every author to do it thoroughly before sending their work to a professional. But these five areas are where the gap between self-editing and professional editing is widest, because they require the kind of detached, methodical reading that's almost impossible when it's your own work.

If you'd like me to give your manuscript this level of attention, have a look at my editing services and get in touch for a quote. I'd love to help you get it right.