Essential Bioinformatics provides a comprehensive and up-to-date introduction to bioinformatics for life scientists. The book covers all key topics in the field and emphasizes the application of computational tools in biological research. It provides readers with a thorough understanding of the principles of computational methods used in molecular biological data analysis but the use of mathematical formulae is kept to a minimum. It is highly suited for teaching bioinformatics to undergraduate and graduate students as well as for researchers wishing to develop their knowledge of bioinformatics tools to facilitate their own research.