The Invisible Hurdles: 5 Common Self-Publishing Mistakes (And How to Dodge Them)

Writing a book is a marathon; publishing it is a high-stakes obstacle course. Many authors cross the finish line only to realize their book feels "off" compared to the bestsellers on the shelf. Often, the difference isn't the writing—it’s the technical execution.

Here are the most common publishing pitfalls and how to ensure your book looks as professional as it reads.

1. Choosing the Wrong Trim Size

The Mistake: Picking a size that doesn't fit your genre. A massive 8x10 novel feels like a textbook, while a tiny 5x8 coffee table book loses its impact.

The Fix: Research your genre.

Standard Fiction: 5.5" x 8.5" or 6" x 9"

Non-Fiction/Technical: 6" x 9" or 7" x 10"

Mass Market Paperbacks: 4.25" x 6.87"

2. Settling for Low-Grade Paper Quality

The Mistake: Using thin, "see-through" paper. If a reader can see the text from the next page bleeding through, it creates a cheap, distracting experience.

The Fix: Pay attention to GSM (Grams per Square Meter). For most novels, a cream or white 50lb-60lb (approx. 75-90 GSM) paper is standard. If you have high-resolution images, opt for a heavier, coated white stock to prevent ink bleeding.

3. Neglecting "The Gutter" (Inner Margin)

The Mistake: Forgetting that books have a spine. If your inner margins (the gutter) are too small, readers have to crack the spine just to see the start of the sentences.

The Fix: Always account for page count. The thicker the book, the wider your gutter needs to be. Aim for at least 0.75" to 1.0" for the inside margin to ensure comfortable readability.

4. Poor Formatting and "Widows/Orphans"

The Mistake: Walls of text, inconsistent line spacing, or "widows" (a single line from a paragraph appearing alone at the top of a new page).

The Fix: Use professional typesetting software or hire a formatter. Ensure your font size is readable (usually 11pt to 12pt) and your line spacing is set to 1.2 or 1.3 to give the text room to breathe.

5. The "DIY" Cover Look

The Mistake: Using generic stock photos or cluttered fonts that scream "unprofessional."

The Fix: Your cover is your #1 marketing tool. If you aren't a graphic designer, invest in one. A professional cover focuses on a single, high-impact visual and uses typography that complements the genre.