COMPLETE SET OF 22 BOOKS 1991 WORLD BOOK ENCYCLOPEDIA PLUS DICTIONARY, SCIENCE YEAR AND YEAR BOOKS - COLLECTION ONLY!

WORLD BOOK ENCYCLOPEDIA SET, PRINTED IN 1991.  SET IS COMPLETE AND INCLUDES 22 VOLUMES.  ALSO INCLUDED ARE THE ACCOMPANYING 2-VOLUME WORLD BOOK DICTIONARY, YEAR BOOKS FOR YEARS 1992, 1993, 1994 AND SCIENCE YEAR BOOKS 1992, 1993, 1994 (THE WORLD BOOK ANNUAL SCIENCE SUPPLEMENT REVIEWING SCIENCE AND TECHNOLOGY FOR THE PREVIOUS SCHOOL YEAR).
 
WORLD BOOK ENCYCLOPEDIA (1917-present):
The World Book Encyclopedia is an American encyclopedia. The encyclopedia is designed to cover major areas of knowledge uniformly, but it shows particular strength in scientific, technical, historical and medical subjects. World Book was first published in 1917. Since 1925, a new edition of the encyclopedia has been published annually.
Starting in the 2000s, the popularity of World Book declined, which caused the company to focus on its digital content and sales to academic institutions alongside children's trade publications.
Since November 2007, both the Windows and Mac electronic editions of World Book Encyclopedia have been developed and published by Software MacKiev.
As of 2022, the only official sales outlet for the World Book Encyclopedia is the company's website; the official list price is $1,199. A company representative said in 2018 that "thousands" of print sets are still ordered annually, mostly by schools who use them as teaching tools for library research skills; public libraries and homeschooling families are also frequent purchasers.
World Book, Inc. is based in Chicago Illinois. According to the company, the latest edition, World Book Encyclopedia 2023, contains more than 14,000 pages distributed along 22 volumes and also contains over 25,000 photographs.
In 2002, Apple included a bundled copy of the Mac OS X Edition of World Book Encyclopedia when they made OS X the default operating system for all new computers.
 
CONDITION: COMPLETE AND IN TACT. IN VERY GOOD CONDITION.
 
SIZE: OVER 30KG IN PHYSICAL AND VOLUMETRIC WEIGHT. FOR PICK UP AT MY HOME IN DOORNPOORT PRETORIA.