Emperor Aquaman Vol. 4: Tidal Wars

Atlantis has fallen, Aquaman’s enemies have united, and the fate of the galaxy hangs in the balance.

The war for the seas has begun.

When Ocean Master, Black Manta, the Crimson Queen, and Aquaman’s deadliest adversaries forge an unprecedented alliance, they set in motion a conflict that threatens far more than Atlantis. As ancient rivalries erupt and kingdoms collide, Aquaman finds himself facing enemies on every front while struggling to protect the empire he has fought to build.

But the battle soon grows beyond the oceans of Earth. With Atlantis under siege, mysterious cosmic forces emerging across the universe, and an ancient power awakening, Aquaman is drawn into a conflict that connects the seas, the stars, and the very foundations of creation itself.

Written by Jeremy Adams and illustrated by John Timms and Paolo Villanelli, Emperor Aquaman Vol. 4: Tidal Wars continues the epic Tidal War storyline with globe-spanning action, cosmic adventure, and high-stakes superhero storytelling.

Collects Emperor Aquaman #21-25.

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