Databases Demystified was written so you would not need all of the technical jargon that you find in other books. The only problem I find with it is that certain places are way too wordy. Overall this book is great for a broad view about databases. Some areas that the book covers are: a brief history on databases, database design, database models, using forms, and general SQL.
This book would be great for a supplemental text to other books. It contains quizzes at the end of the chapters, but I felt some of the questions were there to make sure that you actually were reading the book and were not that important.
Databases Demystified takes a general look at all databases so you can have a basic understanding how they all operate. Since the book is a broad overview of databases, those concerned only with Oracle or Microsoft Access will not find it helpful. I would recommend this book to anyone that needs a general knowledge about databases. I personally learned a great deal from the book.