Finishing OG11 - What book next?

shahab03 wrote:I would suggest that you move onto 1000 series. if you havent dont that then do sets.

the 1000 series aren't the greatest things in the world. most of their best problems are copied from other sources anyway (including official problems), and many of their own problems are just BAD.

if you're too focused on trying to do as many problems as possible, from as many sources as possible, you won't get the most out of your review. in fact, if you think you can get through the whole OG in 3 weeks, i can guarantee that you're studying with too much breadth and not enough depth.

following are some comments i posted on another thread about the same idea. rather than link to that thread, i'll just copy and paste:
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absolutely right.

one thing i've observed often with students who have completed lots and lots of practice material, but who haven't seen any real progress, is that they just do tons of problems 'rapid fire' style, without trying to notice the ways in which the problems are interrelated.

a very, very thorough review of a single problem can take ten minutes or even longer, depending on the nature of the problem. if it's a number properties problem, with lots of subtle signals as to the content being tested (i.e., if you have to recognize that the problem is about, say, primes / divisibility / pos-neg-zero, even though those actual words aren't in the problem statement itself), you might take even longer.
here's the kind of thing you want to do when you review a problem:
* make sure you look for the SIGNALS and CONNECTIONS BETWEEN PROBLEMS.
do not think of the o.g. as a random collection of hundreds of problems to solve individually. instead, think of it as a NETWORK of problems, all related to each other, from which your job is to draw the CONNECTIONS. see, here's the deal: the actual problems themselves are unimportant, because you know you're not going to see those actual problems again. it's the GENERAL IDEAS AND SIGNALS appearing in the problems that matter, because those are the things you're looking for when you see problems on actual tests.
after you solve problems, then, take some time to look back at similar-looking problems (or problems on which you used similar strategies, even though the problems themselves may not have been similar-looking), and see if you can EXTRACT GENERAL PATTERNS OF STRATEGY for those problems. this is the real point of practicing: you come out with techniques that you can use on FUTURE problems. (you should not take too much time teasing out the specifics of any one problem, because, remember, you're never going to see that specific problem again.)

if you're looking for all these things, then you may find that the o.g. and quant supplement alone present more than enough material for a long period of review.