This package of advanced Spanish-English interpreter-training materials is an extension of The Interpreter's Edge. It provides advanced interpreters with more challenging material. The Turbo Supplement includes cassettes and printed materials for four simultaneous interpretation lessons, four consecutive interpretation lessons, and six sight translation lessons. The simultaneous lessons emphasize technical terminology. The consecutive lessons emphasize both technical terminology and slang. The Spanish sight translations emphasize the complex sentences, legal terminology, and frozen phrases often found in Spanish legal documents. The English sight texts emphasize slang and idioms. The Turbo Supplement is ideal for candidates preparing to take the US federal exam.