When I first started with Fortran I got this book. At first I thought " OMG this is a total mess " but spending more and more time using Fortran I found out that the this book tells you only but the truth right from the start. This book uses the jargon of Fortran and high level programming from the first page making a bit difficult to be understood just by say ... taking a look in it. However, the book manages to teach you something very important, which is reading a specific Fortran compiler 's manual and specific instructions given from the standard. This task is accomplished by the persistency of the writters in informing you about how the programming language is arranged and intraconnected among what looks like being different at first glance. Moreover, after passing from the learner's level to the user's level this book can be a great handbook for looking up every detail of the fortran standard, which has many important implications. For example, making sure that internal compiler errors (ice) are really internal compiler errors they are not caused by a you, the programmer. I really can't wait for the Modern Fortran Explained.