Book excerpt: This book, a completely revised version of the authors' 1987 Dual Identities, offers insight on the special treatment issues of lesbian, gay, bisexual, and transgender (LGBT) substance abusers. It describes stages of sexual identity transformation, looks at different counseling approaches, and gives practical suggestions for helping clients. Information is accessible to beginning and experienced counselors as well as patients. Finneagan, an alcohol counselor, and McNally, a psychologist and alcohol counselor, are co-founders and current board members of the National Association of Lesbian and Gay Addiction Professionals. c. Book News Inc.