I think there's some overlap between the 2nd edition and the OG 10th, but I'm not 100% sure. If I recall correctly, the supplements were released after the OG 11 went into print and were made up of questions from the 10th edition that did not make it into the 11th edition.

However, note that about a third of questions in the new 2nd edition of the verbal supplement have not appeared anywhere else. Check this out for a review of the book.

Thanks Dana, this is what i was looking for. I was really suspicious of overlap with some edition of OG. Do you think it is still worth to get a copy of 2nd edition, when the questions are largely easy and medium and also when there is some overlap with OG 10?

I'm also interested to know how many questions would actually overlap with OG 10 in 2nd edition verbal review.

Well, I only surveyed the CR portion, but there's 100% overlap with the OG 10 EXCEPT for the new questions - 23 in total for CR. I suspect this holds true with the other three sections as well, so if you've already gone through the OG 10, the verbal supplement 2nd edition is just a resource for 81 new verbal questions.

Thanks Dana, i've anyway ordered the book. It is not a very expensive book and thought that it would be useful to me in some way or the other. Thanks once again for your inputs