Description from Suntup Website

The limited edition of Stranger in a Strange Land by Robert A. Heinlein is presented in three states: Lettered, Numbered and Artist editions. The editions measure 6” x 9” and feature eleven full color illustrations by Thomas Canty. All editions are signed by Thomas Canty. The text is the complete, uncut version.

The Artist edition is limited to 750 copies with a dust jacket featuring a wrap-around illustration by Thomas Canty. It is a full cloth, smyth sewn binding with two-hits foil stamping. It is the only edition of the three with the dust jacket, and is signed by the artist. The edition is housed in an embossed paper covered slipcase.

This marks the first Suntup Editions release where the name of Artists Gift edition was changed to Artist Edition

Only the Artist Edition of Starship Troopers and Stranger in a strange Land could be bought seperately. The numbered and lettered edition had to be bought as a set.

Also check the other states of the book:

Numbered - Lettered

The other book in the set:

Starship Troopers