Sherlock Holmes Short Stories by Sir Arthur Conan Doyle.

"Sherlock Holmes Short Stories"
Longman Group
Language: English
Published in 1977.
Contains seven short Sherlock Holmes stories by Sir Arthur Conan Doyle in simplified english, 120 pages.
"This book has been specially prepared to make enjoyable reading for people whom English is a second or a foreign language. An English writer never thinks of avoiding unusual words, so that the learner, trying to read the book in its original form, has to turn frequently to the dictionary and so loses much of the pleasure that the book ought to give."