Ibn al-Haytham (National Geographic Kids Readers, Level 3)

Celebrated in a film featuring Omar Sharif in his final role, meet the scientist known as the "Father of Optics," Ibn al-Haytham!

During the golden age of science, knowledge, and invention in Muslim civilization -- also known as the "Dark Ages" in Western Europe -- this incredible scholar discovered how we see and set the stage for the methods we now know as the scientific process. Packed with beautiful and engaging photos, kids will learn all about this fascinating scientist. 

The level 3 text provides accessible, yet wide-ranging, information for independent readers. This book is a companion to the international educational campaign, "1001 Inventions and the World of Ibn al-Haytham," that includes interactive exhibits, workshops, live shows, and a 12-minute film starring Omar Sharif in his final film role before his death.

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