Biology in a Nutshell -- Words -- Word Distributions and Occurrences -- Physical Mapping of DNA -- Genome Rearrangements -- Sequence Alignment -- Rapid Alignment Methods: FASTA and BLAST -- DNA Sequence Assembly -- Signals in DNA -- Similarity, Distance, and Clustering -- Measuring Expression of Genome Information -- Inferring the Past: Phylogenetic Trees -- Genetic Variation in Populations -- …