Ultimate Secrets Revealed

The world is full of mind-blowing marvels and this book uncovers our planet's most peculiar phenomena, puzzles from the past, eye-opening inventions, astonishing animals, and so much more!

Did you know that caterpillars liquefy when they turn into butterflies? That humans shed eight pounds of skin every year? That there's a funky forest in Poland where all the trees are mysteriously crooked? That space smells like burnt plastic? Our world is filled with strange, bizarre, and weird realities. But what do they mean? WHY are they important? And what exactly is the secret behind them?

National Geographic Kids presents a jam-packed new series perfect for fans of Weird But True! and 5,000 Awesome Facts. With cool, action-packed photos, tons of awesome information, and filled to the brim with the weirdest facts ever, this book takes readers behind the scenes of the world of the truly bizarre, to reveal the truth behind our planet's wildest and wackiest. Meet the bizarre bacteria that make Yellowstone National Park's Morning Glory Pool pop with radiant color, discover the mysteries behind the Sphinx of ancient Egypt, learn why the beaches of the Maldives glow bright blue, how tornadoes are so powerful, and so much more! And with Q&As with in-the-field experts, fantastic infographics, exciting stories, and more, this book presents a fresh way of looking at our bizarre planet. So, get ready to experience our not-so-secret world.

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Standard and Primary covers are widely available through general retailers. They often have higher print runs and can be cheaper, especially during sales.

In contrast, Direct Market (DM) and variant covers are primarily sold in comic shops. DM editions tend to have more limited availability and may be more valuable to collectors.

The main differences lie in artwork style, availability, price, and collector appeal. Ultimately, the choice between standard and variant covers depends on personal preference, budget, and individual collecting goals.

Comic book enthusiasts have various formats to choose from when collecting their favorite stories.
Here's a brief overview of the main types:

Omnibus

• Large, hardcover collections
• Usually contain complete runs or extensive story arcs
• Typically 800-1000+ pages
• Higher price point, often €100-€150

Oversized Hardcover (OHC)

• Similar dimensions to omnibus, but thinner
• Collect shorter runs or story arcs
• Usually 300-600 pages
• Priced between €30-€50

Hardcover (HC)

• Standard-sized hardcover books
• Collect 6-12 issues typically
• Similar dimensions to single issues, but with a hard cover
• Priced around €25-€35

Trade Paperback (TP)

• Softcover collections
• Standard comic book size
• Usually collect 4-6 issues
• Most affordable option, typically €15-€25

Other Formats

• Absolute Editions: Oversized, deluxe hardcovers (mainly DC Comics)
• Compendiums: Massive paperback collections
• Graphic Novels (OGN/GN): Original stories not previously released as single issues

The choice between these formats often depends on personal preference, budget, and collecting goals. Omnibus and OHC editions offer larger artwork and more content but at a higher price, while TPs provide a more affordable way to collect complete story arcs