The book has absolutely everything you need to know word-for-word to get certified in NALS. It comes from more of a nursing perspective so little details like how to operate the jackson-reiss and anatomy of the airway will be extremely redunant for respiratory therapists.
I found the CD-ROM included was very buggy in my computer. While it was helpful to see everything happening at once, the videos' content should have been more closely watched, since during a chapter about mechanical ventilation saying bag at around a rate of 40, will clearly show the person at the head ventilating at a rate of closer to 70 or 80.