The document describes E-BABE, an encyclopedia of bioanalytical methods for studying the bioavailability and bioequivalence of pharmaceuticals. It contains over 5,000 thoroughly curated methods from literature and pharmacopeias. Each method includes details needed for development/validation, like chemical structure, analytical conditions, and pharmacokinetic parameters. Users can search by drug name, chemical formula, or structure to select appropriate quality control and bioequivalence study methods. E-BABE aims to support the pharmaceutical industry and testing laboratories in selecting bioanalytical methods.