To My Loyal Readers

Thank you for purchasing this 2020 version of THE BASICS, Second Edition.

It’s amazing how well the content has stood the test of time.

However, there are a few things that have become out of date and rather than rewrite the whole book for those few things, I have done the following:

I updated the DSM-IV-TR to the DSM-5 on my website in the Subject Reviews, for no cost. I have included an updated bibliography with my 10 favorite references from the last decade, in case you wish to find more current references.

The principles and practices for helping individuals with co-occurring disorders have not changed. I hope you find this book as useful as ever.

Best wishes, Rhonda McKillip