Mass market paperbacks were originally designed to fit in your pocket

Why are books released in hardcover and paperback?

Publishers regularly release books in hardcover only to rerelease them in paperback a year later. It's a strategy that might seem counterintuitive. Why spend so much time on two separate releases? And why spend so much money on two individual products? This Reader's Digest article goes behind the scenes in the publishing industry to answer these questions and others, offering insight into the intricacies of a complicated business.

Circulating libraries helped the novel's popularity surge

As literacy rates began to rise in the 19th century, so did the demand for reading materials. The only problem? Newspapers and books weren’t cheap, and newly literate middle-class families struggled to afford literature. That changed when booksellers began offering small fees for patrons who decided to borrow rather than purchase books. This was eventually called a circulating library, an innovation that would satisfy the burgeoning readership of novels and increase literacy rates further.

The US paperbacks of Tolkien's books led to the popularization of fantasy

Tolkien initially resisted publishing his books in paperback because of the stigma attached to the format, with many believing that serious fiction was first published in hardback. When Ballantine Books eventually published the “Lord of the Rings” trilogy in 1965, though, the genre became more popular, leading Ballantine to continue publishing adult fantasy and expanding the genre’s bounds.

Americans are reading fewer books than in the past

A 2022 Gallup survey found that Americans are reading fewer books than ever before. An additional study found that the time people spend reading has dropped over the last 20 years. The most compelling narrative for the shift? Screens have stolen potential readers, occupying the time that they otherwise would’ve spent with books.

Paper coupon suppliers and major newspaper insert distributors are in decline

Given the uptick in digital coupon adoption, sellers who offered coupon inserts or individual coupons for sale online have been closing up shop in recent years.

The economics of romance novels

Romance is the publishing industry's most popular genre, with over 44 million units sold in 2025 alone. This episode of "The Economics of Everyday Things" podcast explores how the once-maligned form became the most reliable kind of book in the industry.

Paper boarding passes have become rarer in recent years

Many travelers have shared their attachment to the documents as their utility fades. This sharply illustrated timeline reviews the development of the paper boarding pass as technology evolved.

The opening chapters of bestselling novels are thousands of words shorter than they were in the 1950s

Novels like "The Catcher in the Rye" and "Lord of the Flies" averaged opening chapters with about 4,500 words. Titles from the 2020s, on the other hand, including "Fourth Wing" and "Lessons in Chemistry," are closer to 2,500 words.

None of Dickens' books has gone out of print

Dickens was a literary celebrity during his lifetime, but his popularity has endured over a century after his death. Publishers have kept his books in print to satisfy demand. It's paid off: "A Tale of Two Cities" alone has sold over 200 million copies.

Although no longer the dominant format, CDs are increasingly popular with younger people

The compact disc now only accounts for about 3% of all music industry revenue, but those who still purchase CDs are, generally, much younger than most would expect. A 2023 YouGov poll found that 53% of Americans were willing to pay for music on CDs. When broken down by generation, those under 45-years-old were more likely to express interest in CDs and vinyl.

The history of real-life crime magazines

Before podcasts and streaming services, details of true crime cases could be found smushed between glossy magazine pages. "True Detective Mysteries," a magazine of fictional crime retellings that debuted in 1924, quickly pivoted to sharing detailed reporting of real criminal cases after seeing what drove sales. Rebranding itself as "True Detective," the magazine launched dozens of imitators and only shut down publishing in January 2024.

The products sold at dollar stores tend to be smaller in size

Recent reports suggest that dollar stores regularly practice 'shrinkflation,' the practice of making products smaller while keeping the price the same or even raising it.

The prevalence of microplastics came from plastic’s affordability and versatility

Microplastics' durability and overuse have led to massive pollution that overwhelms the planet's ecosystems. Avian, terrestrial, and marine life have been observed to contain microplastics in their bodies, but reverting to paper, cotton, and other materials in manufacturing also brings environmental challenges.

Why the $25K car is going extinct

The share of overall new auto sales under $25k was 4.8% in February 2025, according to the automotive pricing source Edmunds. That's down from 23% during the same month in 2019.

One of LVMH's key business innovations was widening the luxury market's target audience

While certain items under the LVMH umbrella can cost thousands of dollars, like large Louis Vuitton bags, others, like coin purses or lipstick, cost significantly less. Some argue that these comparatively lower-priced items allows LVMH's target audience to be much larger in size than it would have been if it only targeted the world's wealthiest shoppers, whereas others argue that it makes the brand more vulnerable to economic downturns.

The first portable laptop had a 5-inch screen and weighed 24.5 pounds

Introduced in 1981 for $1795, the Osborne 1 had no battery but came bundled with almost $1,500 worth of software. Early announcement of a future model stalled sales and bankrupted the company as users waited for the more advanced version, a phenomenon now called the Osborne effect.

Chip-based 3D printers can be pocket-sized and involve no moving parts

Researchers have demonstrated a proof-of-concept version of a chip-based 3D printer that emits visible light onto light-sensitive resin to construct solid shapes. The technology may provide a portable, low-cost solution for future, small-scale fabrication needs.

A catalog of 3,000 ornate Chinese cigarette boxes and brands

China's vast, state-owned tobacco market has produced enough regional brands and packaging variants to sustain a dedicated collector community. Ciggies.app functions as both a product database and an enthusiast social network, with entries spanning current mainland releases, historical discontinued brands, and international imports.

Roughly 350,000 billboards advertise across the US

The world's oldest form of advertising can feel antiquated in a digital age, but the place-specific signs are the basis of a $9B business. Learn the history of these ads and how they remain relevant in a digital age.

In recent years, Hollywood studios have reevaluated their Comic‑Con presence

Comic-Con’s impact on the movie industry may be diminishing. In 2025, major studios—including Marvel, DC, Lucasfilm, Sony, Paramount, Legendary, and Lionsgate—scaled back Comic‑Con participation. They cited high costs, timing that didn’t align with release schedules, and limited marketing impact in a crowded promotional landscape.

Bezos has frequently cited a 1999 article titled Amazon.bomb to illustrate how dire the early predictions about Amazon got

Over the years, Amazon founder Jeff Bezos often recalls how wrong the predictions in the 1999 Barron’s cover story were. Among other things, that article declared Amazon’s entire business model to be unsustainable and destined to fail, noting its lack of profit and dependence on a massive amount of capital to fund its growth.

The world of rare and expensive Pokémon cards

The rising value and popularity of Pokémon trading cards is driven by nostalgia, influencer culture, and the launch of Pokémon Go. Fans of the decades-old Japanese game are now seeking to buy rare cards in mint condition for thousands of dollars, sometimes even millions. Learn more about the frenzy to collect these rare cards, and how influencer Logan Paul helped boost market interest in this article.

Fast, cheap, and deadly: How fentanyl replaced heroin and hooked America

This interactive article details how fentanyl has largely replaced heroin in the drug trade, with fatal results. Fentanyl was first developed in 1959 as an anesthetic for pain relief, but the drug took hold in the US black market in 2014 and has since exploded in the intervening decade.

Tracing the evolution of mobile phones

The first cell phone was created in 1973, with a 2.4-pound handset and a battery life of about 30 minutes. Since then, pretty much everything about it has drastically changed, with more than 5 billion cellphone users across the globe (that's more than half of the world population). Learn about the evolution of the mobile phone and where the technology may go in the future with this four minute video.

Uncrustables' reinvention of the PB&J

In the 1990s, David Geske and Len Kretchman came up with the ingenious idea to package and mass-produce a crustless version of the peanut butter and jelly sandwich. This makeover to an American childhood staple resulted in a $1B business. Read this article in Mental Floss to learn more about the origins of the brand Uncrustables and its extraordinary success.

Sears sold DIY house kits starting at $600 in its famous catalog from 1908 through the 1940s, resulting in roughly 10,000 'Sears and Roebuck houses' being built.

Sony set the standard for cylinder-shaped batteries when it repurposed manufacturing equipment used to make rolls of magnetic recording tape.

Netflix profits when you're not watching, and its movies are designed that way—read a detail-rich critical essay exposing lesser-known Netflix takes

Mid-century modern graphic designers, known for their bright colors and bold lines in advertising, also found success with children's books.

US consumers collectively owe more than $1T to credit card companies—almost as much as they owe in auto loans.

Mark Twain spent decades feuding with the US Postal Service, convinced its costs and regulations were bureaucratic overreach.

As of 2025, the most cited papers in science include a review of graphene, methods to improve image recognition, streamlining electron density calculations, and optimizing protein studies.

Some researchers have labeled nomophobia, the fear of being without your phone, as 'the phobia of the 21st century.'

How the most famous Ebola book, The Hot Zone, which sold 3.5 million copies and was translated into 30 languages, got aspects of the disease so wrong.

The most expensive ad of all time was for Chanel No. 5 perfume and cost roughly $33M to produce in 2004—about $57M in today's dollars.

Larger animals like giraffes, elephants, and blue whales have developed a unique defense against cancer, a phenomenon known as Peto's Paradox

A vending machine run with Anthropic's AI went out of business after it was convinced to give away items for free and sell a video game console.

Telehealth demand for GLP-1s for weight loss is booming as consumers seek easier access.

The Beatles' US label rejected the band's first two singles, 'Please Please Me' and 'From Me to You,' with one executive calling the band 'dead in the water.'

Domino's Pizza's 30-minute delivery guarantee was responsible for the chain's 1980s surge, but it was discontinued after the company was found liable for delivery driver accidents.

20,000 letters to the advice columnist 'Dear Abby' provide insight into prevailing sex, religion, and LGBTQ fears, anxieties, and concerns from the 1950s onward.

Up to a million Girl Scouts sell about 200 million cookie boxes every spring, generating $800 million, largely because refusing a child is frowned upon

After the Boston Tea Party, colonists switched to coffee, which became the main morning drink for revolutionaries.

To reduce wrinkles in clothing, research recommends gentle wash cycles with more water and tumble drying with smaller loads and longer times.

Explore a list of the 100 best novels of all time, compiled by some of the world's best living writers, including Salman Rushdie, Stephen King, and Jennifer Egan.

Memecoins are a type of cryptocurrency—a form of digital currency with a wide variety of uses—created around popular 'memes,' or viral internet jokes.

According to the physics of black holes, our 4D reality may be a hologram—a projection of information coded on a 2D surface on the edge of the universe.

Stanford built a Google Maps for the Roman Empire, revealing how much it cost to travel in the ancient world

Volcanoes 'die' when their supply of magma runs out, if they are shifted away from their underlying magma reservoir, or if they get clogged by collapsing or their magma cooling back into rock.

Firework or sparkler burns, even if they cover a relatively small area of skin, can significantly affect our range of motion.