Green Hippo

When a green hippo struggles with being different, his friends help him accept his individuality in this boldly illustrated story from Petr Horácek.

Green Hippo is feeling sad because someone told him green hippos don’t exist. His friends Frog, Elephant, and Giraffe try to cheer him up, but Green Hippo is too dejected to listen—it’s easy for them to say such things, as Frog is the color he’s supposed to be, Elephant is gray, and Giraffe yellow! Walking off on his own, Green Hippo suddenly notices the kaleidoscope of colors all around him in the meadow, and his sadness turns to happiness. He can’t wait to share his discovery with his friends, who have their own surprise for him. In a touching story about friendship that doubles as a concept book about colors, Petr Horácek brings his own brilliant palette to celebrating the differences among us—and the gift of being yourself.

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