In only 6 simple diagrams will you learn all rules of English grammar which you might need to know in your lifetime. Over the 30 years I have been teaching English, I have observed that those attempting to master its use have found its grammar to be confusing, complicated and non-descriptive. Even those who eventually become proficient in speaking English still find themselves unable to master writing. It does not have to be so complicated. Through my years of teaching English to foreign language students, I have diagnosed the problems faced by most students (and teachers), and developed a system whereby written English may be mastered through the practice of six easy-to-follow diagrams. When the student has completed the process of learning and using these six diagrams, he/she will be able not only to write English more clearly and easily, but also to comprehend the writing of others (and to identify their mistakes).