Speech and Language Processing, Daniel Jurafsky and James H. Martin, 2025 (Stanford University Online (Draft of 3rd Edition)) - Definitive textbook for speech and language processing, covering ASR evaluation, WER, and Levenshtein distance algorithms in detail.
Introduction to Algorithms, Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest, and Clifford Stein, 2022 (MIT Press) - Standard algorithms textbook providing comprehensive theoretical background on dynamic programming and edit distance algorithms, fundamental for sequence alignment.