I read a lot of book reviews. Hundreds a year, probably. As a publisher, reviews are part of my professional diet, and I have opinions about them. Strong opinions, actually. Because after years of watching reviews help (or fail to help) readers find books, I have come to believe that most book reviews are written for the wrong audience.

Here is what I mean. A review should answer one question: “Should I spend my time and money on this book?” That is it. That is the whole job. And yet so many reviews get tangled up in summary, personal grievances, comparison shopping, or worse, performing intelligence for an audience of other reviewers rather than serving actual readers.

This is a guide for anyone who writes book reviews, whether you run a blog, post on Goodreads, record BookTok videos, or write for a publication. I want to share what I have learned from the publisher’s side about what makes a review genuinely useful. Not useful to us (though good reviews certainly help), but useful to the readers who are trying to decide what to read next.

Start With Who the Book Is For

The single most helpful thing a review can do is identify the book’s ideal reader. This sounds obvious, but most reviews skip it entirely. They jump into plot summary or critical analysis without ever answering the basic question: who would enjoy this?

When I read a review that says something like “If you enjoyed Hilary Mantel’s Wolf Hall and you have been looking for historical fiction that takes its research seriously, this book is for you,” I know immediately whether to keep reading. That one sentence tells me the genre, the tone, the level of ambition, and the kind of reader the reviewer has in mind.

Compare that to a review that opens with three paragraphs of plot summary. By the time I have finished reading about the protagonist’s backstory and the inciting incident, I still do not know whether the book is literary or commercial, fast or slow, funny or serious. Plot summary is the least useful part of most reviews, and it usually takes up the most space.

Think about how you recommend books to friends. You do not summarize the entire plot. You say something like, “It is a slow-burn mystery set in a library, and the writing is gorgeous.” That is a review. Everything after that is detail.

Be Specific About What Works (and What Does Not)

Vague praise is almost worthless. “The writing is beautiful” tells me nothing. Beautiful how? Spare and precise? Lush and descriptive? Rhythmic and musical? Dry and witty? These are all “beautiful” writing, and they appeal to very different readers.

When our team reads reviews of ScrollWorks titles, the ones that help us most (and help readers most, I think) are the ones that get specific. A reviewer of The Last Archive by Catherine Voss once wrote that the novel “moves at the pace of archival research itself, which is to say slowly and with frequent detours that turn out to be the point.” That tells a potential reader exactly what to expect. Someone who wants a fast thriller will self-select out. Someone who loves patient, meticulous fiction will lean in. Both outcomes are good.

The same principle applies to criticism. “I did not like the ending” is not helpful. “The ending resolves the central mystery too quickly after 300 pages of careful buildup” is helpful. It gives the reader information they can use. Some readers do not mind quick resolutions. Others will appreciate the warning. Either way, they are making an informed choice.

Specificity also means giving examples. If you say the dialogue is sharp, quote a line (briefly, respecting the author’s work). If you say the pacing drags in the middle, identify where. If you say the research is impressive, mention a detail that surprised you. Examples transform a review from opinion into evidence.

Separate Your Taste From the Book’s Quality

This is hard. I know it is hard. But it is the difference between a good reviewer and a mediocre one.

I do not enjoy horror. I have never enjoyed horror. If someone asks me to review a horror novel, my personal reaction is going to be colored by the fact that I dislike the genre. A responsible review would acknowledge this. “I am not a horror reader, so take my perspective accordingly” is an honest and useful framing. It does not invalidate the review. It contextualizes it.

Some of the worst reviews I have read are written by people who clearly dislike the genre they are reviewing. They criticize a romance novel for being predictable (that is partly the point of romance), or a literary novel for being slow (pacing in literary fiction is doing different work than in a thriller). These reviews are not wrong, exactly, but they are misleading. They judge a book by criteria that the book was never trying to meet.

The best reviewers I know can say, “This is not my preferred genre, but I can see that it does what it sets out to do very well.” That kind of review respects both the book and the reader. It acknowledges that different books have different goals and that quality can exist across the entire spectrum of genres and styles.

When we published Bitcoin for Absolute Beginners by Alexander Hawthorne, we received a few reviews from cryptocurrency experts who criticized the book for being too basic. They were right that it is basic. That is the entire point. The title includes the words “Absolute Beginners.” A review that says “this book is too simple for someone who already understands blockchain” is accurate but unhelpful. It is like reviewing a children’s book and complaining that the vocabulary is limited.

Watch Your Plot Summary

I mentioned this above, but it deserves its own section because it is the most common problem in book reviews. Too much plot summary.

Here is a rule of thumb: your plot summary should not exceed 15% of your total review. For a 500-word review, that is 75 words. For a 1,000-word review, 150 words. That is enough to orient the reader without spoiling the experience.

I understand the temptation. Summarizing the plot feels safe. It is factual, it fills space, and it does not require you to make a judgment. But readers can get a plot summary from the jacket copy. What they cannot get from the jacket copy is your assessment, your reaction, your analysis of whether the book succeeds at what it attempts.

Some reviewers use plot summary as a substitute for analysis. They describe what happens in each chapter, add a sentence or two of opinion at the end, and call it a review. This is a book report, not a book review. The distinction matters. A book report tells you what the book contains. A review tells you what the book is worth.

And for the love of everything, do not spoil the ending. This should go without saying in 2026, but I still see it happen. If you must discuss the ending, use a clear spoiler warning. Your readers will thank you, and so will the author.

Address the Writing Itself

Many reviews discuss plot, characters, and themes but say nothing about the writing itself. This is a significant gap. Two books can have similar plots and very different reading experiences because of how they are written. Sentence structure, word choice, rhythm, voice: these are the things that determine whether you want to keep reading or not.

You do not need to be a literary critic to comment on writing. You can say, “The prose is clean and straightforward, easy to read quickly.” You can say, “The author writes long, complex sentences that reward careful attention.” You can say, “The dialogue sounds like real people talking.” These are observations that help readers understand what the reading experience will feel like, which is separate from what the book is about.

A reviewer once described the prose in Echoes of Iron by James Whitfield as “the kind of writing where you stop and reread a paragraph not because you are confused but because you want to hear it again.” I thought that was one of the best compliments a reviewer could give, because it told potential readers exactly what kind of engagement the book demands.

Context Helps More Than You Think

A review does not exist in isolation. The best reviews place a book in context. What is it responding to? What conversation is it joining? What other books live in the same neighborhood?

Comparisons to other authors are useful when they are precise. “Fans of Donna Tartt’s atmospheric slow builds will find a lot to appreciate here” gives me a clear reference point. “In the tradition of great American fiction” gives me nothing.

Historical and cultural context can also enrich a review. A review of a novel about immigration that mentions the current political climate gives the reader a sense of the book’s timeliness. A review of a non-fiction book about technology that mentions recent industry developments helps the reader understand the book’s relevance. You do not need to write an essay about the context, but a sentence or two can make a big difference.

For non-fiction, context includes the author’s qualifications. When we published The Cartographer’s Dilemma by David Okonkwo, the most helpful reviews mentioned his background and experience. This gave readers a way to evaluate the authority behind the book’s claims. For fiction, the author’s background is less relevant to the review, but it can sometimes illuminate the work in useful ways.

A Note on Star Ratings

I have a complicated relationship with star ratings. On one hand, they are efficient. A quick glance at a number tells you the reviewer’s overall assessment. On the other hand, they flatten the nuance out of a response.

A three-star review could mean “decent but forgettable” or “flawed but fascinating” or “well-crafted but not to my taste.” These are very different assessments, and they all get the same number. The text of the review is where the real information lives.

If you use star ratings, I would encourage you to think of them as a separate element from your review, not a summary of it. Write your review first. Assess the book on its own terms. Then assign a rating based on your overall recommendation, not the other way around. Too many reviewers start with a rating in mind and then write a review that justifies it, which tends to produce one-sided assessments.

I have also noticed that rating inflation is a real problem on platforms like Goodreads. When the average rating is somewhere around 3.7, anything below a 4 looks like a negative review, even if the reviewer’s actual comments are positive. This makes it harder for readers to calibrate. If you are going to use the full scale, use it honestly. A three-star review that says “good, not great, here is why” is more valuable than a five-star review that says “loved it!!!” with no further detail.

Negative Reviews Are Fine. Cruel Reviews Are Not.

I want to be clear about something. Negative reviews are legitimate, valuable, and necessary. A book that only receives positive reviews is either genuinely perfect (rare) or living in an echo chamber (common). Negative reviews help readers make informed decisions. They also help publishers and authors understand what is not working.

When I read a thoughtful negative review of one of our books, I pay attention. If multiple reviewers identify the same issue, that is information we can use for future projects. If a reviewer articulates why a book did not work for them in a way that is specific and fair, I respect that. I may disagree, but I respect it.

What I do not respect is cruelty disguised as criticism. There is a difference between “the character development is thin and the protagonist’s motivations are unclear” and “I cannot believe this got published.” The first is a critique. The second is an insult. The first helps the reader and the author. The second helps nobody.

Personal attacks on authors have no place in a review. Speculation about an author’s intelligence, intentions, or character is not criticism. Mocking a book’s premise or genre is not criticism. Condescension toward readers who might enjoy the book is not criticism. A review should assess the work, not the person.

Practical Tips for Different Platforms

The principles above apply everywhere, but different platforms have different conventions and constraints.

For blog reviews, you have space to develop your thoughts. Use it, but stay focused. A 1,500-word review that has a clear structure (brief setup, specific analysis, recommendation) is more readable than a 2,000-word essay that wanders. Use subheadings if your review is long. Include the book’s basic information (title, author, publisher, publication date) at the top or bottom so readers can find it easily.

For Goodreads reviews, remember that your audience is primarily other readers deciding whether to read the book. Front-load your assessment. The first paragraph should tell me your overall reaction and who you think would enjoy the book. Details can follow.

For Amazon reviews, be aware that many readers only read the first few sentences before deciding whether to expand the full review. Make those sentences count. Also be aware that your review exists in an ecosystem that affects the book’s visibility. An honest, detailed review, whether positive or negative, contributes to that ecosystem in a way that a one-sentence reaction does not.

For BookTok and bookstagram, the visual and personal elements are part of the review. Your enthusiasm (or lack thereof) is communicated through tone and body language as much as words. But the same principles apply: be specific, identify the audience, and respect the work even when you do not love it.

For podcast reviews, structure is everything. Listeners cannot skim ahead the way readers can. Open with your recommendation, then build your case. Give your listeners permission to stop listening once they have heard enough to make a decision.

Why This Matters

Book reviews are how books find their readers. In a world where thousands of new titles are published every week, reviews are the primary filter between a book and its audience. A good review does not just evaluate a book. It connects the right reader with the right book at the right time.

When someone reads a review of Still Waters by Elena Marsh and thinks, “That sounds like exactly what I am looking for,” and then reads the book and loves it, the reviewer made that happen. That connection between reader and book is the whole point of the review ecosystem. Everything else, the analysis, the star ratings, the critical debates, is secondary to that basic act of matchmaking.

So if you write book reviews in any format, on any platform, for any audience: thank you. Seriously. Publishers and authors depend on your work. Readers depend on it even more. And if any of the suggestions in this piece help you write reviews that serve readers better, then I will consider this the most useful thing I have written all year.

Published by the ScrollWorks Media editorial team.