Robert K. Greenleaf

Meet the man whose work influenced some of the world’s most prominent business leaders and spawned a worldwide movement that is still gaining strength today. Robert Greenleaf’s landmark 1970 essay, The Servant as Leader, introduced the now common term “servant leadership” to the world. His work has been cited by leading writers and business people including Ken Blanchard, Stephen Covey, Peter Senge, Margaret Wheatley, and Peter Block and led to the development of Centers for Servant Leadership around the world.

This long-awaited biography of Robert Greenleaf, authorized by his surviving children, finally tells his story. Drawn from Greenleaf’s personal papers, correspondence, and interviews with family and friends, it provides a fascinating look at the sources of Greenleaf’s thought, his friendships with some of the most influential men and women of the twentieth century—including Eleanor Roosevelt, Peter Drucker, the Menninger brothers, Reinhold Niebuhr, Aldous Huxley, Alcoholics Anonymous co-founder Bill Wilson, and many others—and how he influenced business history well before his first book was published at the age of seventy-three.

At a time when leadership and management fads substitute as wisdom, Robert Greenleaf’s life stories provide clues for how each person can make a difference in the workplace, no matter what position he or she holds.

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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