• Language = English
• ISBN-13 = 9788170211877
• Paperback = 402 pages
• Publisher = B Jain Publishers Pvt Ltd 
• Country of Origin = India

Allen's Keynotes is one of the most popular and widely read materia medica.

The reason for its popularity being its preciseness and comprehensiveness. Dr Allen has presented the keynote symptoms of 188 of the more commonly used remedies on a style that is very easy to read and comprehend.

This book gives the characteristic of each remedy or what can be called as "red strand of the rope" and central modality.