You can join by creating an account and using Pay Pal or register and send a check to LWKS. Some of the subjects are listed below. 

Here now in the Members section -  
Over 100 articles on a variety of subjects including category completion, uppercuts, how to leave the studio, spontaneous forms, conducting exams.
Planning and executing a women's self defense class, with set-up guidelines and a class syllabus. 
Basic and intermediate technique analysis guidelines. 
The Kenpo Instructor's Handbook.  Chapters include Motor Skills Development, Are You a Professional?, plus "The Five Hazardous Attitudes", "The Structure, Function, and & Use of Lesson Plans" with a Sample Lesson Plan, Let's Talk About Uniforms, and more.
Historical interest - the original Pasadena technique booklets with commentary. The IKKA member handbook.

Go to the Membership Info page for more and to subscribe.