best for non natives -- verbal prep

purchased the verbal online prep. It got my score V25-29 to V36-38 within 2 months of studying 2 hrs per day.

They get into the basics and make you understand how gmat creates the material that is most commonly tested. highly recommended to anyone struggling to get past v30. i will be taking the gmat test again and hopefully will cross the v40 barrier.

the video are easy to understand and learn from. make sure you attempt all the practice questions and learn from your mistakes.

I originally started with reading the manhattan gmat book for sc however i could not understand most of the content, the video's here helped me understand from the basics.
The cr content is equally good -- just note the sample questions are harder than the real test.