Two Moons

It’s the spring of 1877 in Washington, D.C., and at the U.S. Naval Observatory, great changes are afoot: historical, romantic, and scientific. When the brilliant Cynthia May—a Civil War widow whose beauty has been shadowed by worry and poverty—starts work as a human “computer” at the Observatory, astronomer Hugh Allison has found just the partner he needs for a radiant, half-crazed scheme which will make him live forever in the annals of science and space. But first the two scientists must overcome the very earthly obstacles presented by powerful Senator Roscoe Conkling of New York; and a fraudulent astrologer who just might know their future. Masterfully combining historical detail and startling invention, bringing Reconstruction-era Washington to life along with the ambitions of the burgeoning American nation, acclaimed writer Thomas Mallon gives us a galvanizing story of earthly heartbreak and other-worldly triumph.

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