This textbook provides an accessible introduction to the most important features of Fortran 2008. It presents a complete discussion of all the basic features needed to write complete Fortran programs and makes extensive use of examples and case studies to illustrate the practical use of Fortran 2008 features, supplying simple problems for the reader. The book offers a detailed exploration of control constructs, modules, procedures, arrays, character strings, data structures and derived types, pointer variables, and object-oriented programming. It includes coverage of major new features in Fortran 2008, such as coarrays, submodules, parameterized derived types, and derived-type input and output. The topic of modules is highlighted as the framework for organizing data and procedures for a Fortran program, and it investigates the excellent input/output facilities available in Fortran. The textbook also contains appendices.