I read this book over vacation and it is very informative.  I am not sure I agree that the antichrist will be Muslim, but Richardson's knowledge of Islam is quite remarkable.   I believe the book should be read if only to inform Christians of what Muslims believe.   I agree with what Richardson said in an interview... (my paraphrase)  "There are many watchers on the wall looking for the coming antichrist.  Some Christians are looking to the east and others to the west, but what is important is that we ARE watching."