Reformed and Modified English Basic English
You have found the way to Basic English on Reformed and Modified English:
Basic English and Grammatical Reform - This 1937 pamphlet describes and justifies Basic (a simplfied English), written Charles K. Ogden.
Ogden's Basic English - Information on the constructed language created by Charles Kay Ogden.
Simplified English - Simplified English is a method of writing based on a controlled vocabulary. Since includes information on users and implementation and includes examples. Help build the largest human-edited directory on the web.