This book has been written with special education teachers in mind. There is a strong research base yet the material is very accessible. There are numerous case studies that illustrate the impact of language disorders on students and on classrooms. Activities at the end of chapters provide suggestions for group or individual projects. This book takes a categorical approach, including descriptions of language disabilities by category of disability. For professionals working in the field of special education.
This was my introduction to the subject, and so I'm not qualified to comment on its accuracy. I did find it to be well written and laid out. I particularly liked the way they beat into your head that if you have a student with a behavior disorder you need to get them a speech/language evaluation. I also enjoyed the way they tied language to literacy, because duh.