Hi,

Yes, It is definitely worth it to buy the NMAT by the GMAC Official Guide . The guide provides a complete detailed knowledge about the exam as well as it also covers all the important aspects related to the exam. It also contains basic concepts, solved examples, practice questions for all the three sections. There are a lot of praftice questions available for students to practice. Reading Comprehension, Verbal Reasoning, Analytical, Reasoning, Number System, etc. It is like a ALL IN ONE guide.

I hope this helps,

All the best.