Most of us are constantly looking for ways to improve our lives. That’s why self-help books can be so successful. But in order to attract attention, they have to feature a catchy and meaningful self-help book title.

One author of a self-help book tested titles on PickFu, asking, “Which is a more enticing title for a self-help book?”

Option A is Stressless Success. Option B is Stress Free Millionaire.

Can you guess which one won?

Chick lit is the new chick flick. Or maybe it’s better, because for those who crave the lighthearted humor of a romantic comedy, a book lasts longer. But should chick lit book cover art be as frothy as the subject itself? Bestselling author Kate O’Keeffe took her latest novel to PickFu to find out.

She asked a general audience of respondents the following question: “Which cover do you prefer for a fun, feel-good book about finding love?”

Option A shows a bright red cover with illustrations of two characters (sans their faces) and yellow font.

In Option B, the cover takes a totally different turn. With a pink-clad woman and a light-blue background, this cover is as light as a cupcake. It also lacks the blurb by a fellow bestselling author.

Can you guess which one won?

Even the tiniest changes in business book titles title can affect whether a reader buys your book.

One author recently tested two versions of a book title with PickFu. The author polled 50 college-educated respondents and asked, “I’m writing a book on how to attract and hire great people. What title do you like the best?”

Option A reads, “Escape the Hiring Trap: How top companies beat Facebook, Amazon, and Google for talent.”

Option B says, “Win the Talent War: How top companies beat Facebook, Amazon, and Google for talent.”

Can you guess which one won?

When you think of retirement, do you feel a sense of happy expectation? Or does the abyss of unemployment freak you out — what in the world will you do with your life?

One author set out to write a book to help us all stress less about retirement called Stop Freaking Out About Retirement: How to Reach New Goals & Enjoy Your Life When Work Ends. She ran a PickFu poll to choose her self-help book cover design.

Option A shows brushes of color behind the title, and a mostly blank, white background. Option B removes the color and adds green falling leaves instead.

Can you guess which one won?

Every weight-loss book out in the world today sells a slightly different method to get the same result: shedding unwanted weight. If you’ve written a weight-loss manual, you’d better hope its book titles and subtitles are distinct enough to stand out.

When author Grace Smith wrote a book about the unusual weight-loss tactic of hypnosis, she used PickFu to decide what title to run with. She created a poll targeted at people between the ages of 25 and 54. Then, she asked this audience to tell her which title caught their interest.