Socionics Demystified: A New Social Psychology for Understanding Relationships, by Spencer Stern (Author), 2007
How to Find Yourself and Your Best Match. Socionics. The Modern Approach to Psychological Types (Paperback) by Rod Novichkov (Author) , 2007. This one is on google books and their type charts look to be horrible. The review tagline at amazon says "Finally, there is a Socionics book in English."