Reddit mentions of The Official LSAT PrepTest 75: (June 2015 LSAT)

Much of the logic required for the test is shared among sections, so studying for one helps the others. Also, each section tends to require a slow progression because you are basically changing how you think, so a lot of people recommend intertwining the three to some extent.

Logic games are usually the quickest to improve on, so a lot of people start with more of a focus there. This allows you to shape your mind to LSAT faster and can help with the other sections. It also gives you a sense of progress and accomplishment.

Reading comprehension and logical reasoning are basically how well you pay attention to what you read and how you logically connect the provided information, so how fast and to what extent you pick those sections up depends on how well you build those skills. Sometimes that takes days to see drastic improvement (I had a student go from the mid-teens to the mid-twenties on RC in a day because he changed to a more effective approach), but often it takes months (usually because one is just practicing instead of changing what he or she is doing wrong).

First, I recommend that you take a practice test. You can access June 2007 for free. This will help you to determine what needs the most work. You will eventually want to buy at least some of the official preptests (all are good, but newer is more relevant and therefore more important):

• PrepTest 77
  
• PrepTest 76
  
• PrepTest 75
  
• PrepTest 74
  
• PrepTest 73
  
• PrepTest 72
  
• PrepTests 62-71
  
• PrepTests 52-61
  
• PrepTests 29-38
  
• PrepTests 19-28
  
• PrepTests 7, 9-16, 18
  
• 10 Real LSATs Grouped by Question Type: Manhattan LSAT Practice Book
  
  Then, I suggest working with a set of prep books or online lessons. A lot of people like 7Sage, the LSAT Trainer, and PowerScore, but there are other options as well.
  
  Three pieces of advice:
  
  1.) Don't blow through all of your practice tests - even though there are 77 of them - a lot of people who start early tend to run out. That leads to:
  
  2.) Don't take a lot of practice tests early. Your job is not to practice your current (bad) habits; instead, it is to identify what aspects of your approach you are doing wrong and make a conscious effort to fix them. You will get much more out of slow, untimed, exhaustive, reflective study than out of plowing through lots of practice tests expecting something to change. If you are not improving yourself, do not just continue to take practice tests - instead:
  
  3.) Don't be afraid to look into a tutor. An experienced one can usually diagnose issues and sometimes that is more efficient and effective than working through it on your own, especially when you are stuck and struggling to improve. That can be expensive sometimes, but it can also be the reason why you get into your target school and/or the reason why you get a scholarship (my prep, many years ago, paid for itself many times over).
  
  Good luck!

When I said "51 onward" I was referring to PrepTest 51 and onward. PrepTest, commonly abbreviated as PT are previously administered LSATs. Every LSAT is released as such, except for those pertaining to the February administration. The most recent PrepTest is number 77, which corresponds to the LSAT that was administered in December of 2015. Each PrepTest contains the four officially scored sections of the LSAT plus the writing sample question, it however does not include the experimental section as this would compromise future LSATs. When you purchase the LSAT PrepTest volumes, you do not receive explanations, only an answer key and percentile conversion chart to each exam. However, the LSAC has released a book called SuperPrep II which includes 3 PrepTests, of which is there not only an answer key, but official explanations to each and every question, explaining why the right answer to each is the, well right answer. Although the LSAC does not have an explanation for all of their PrepTests published, there are many forums, websites and even published books which will do so for you. For example, The Princeton Review will be shortly releasing "LSAT Decoded" which will explain all of the answers in corresponding LSATs(PrepTests) I listed the following books that I purchased and recommend. Go to your local bookstore and read a couple pages of the Prep Company's book and see if their method of teaching works for you, if not, find another. Lastly, I would like to say that it is of absolutely no trouble for myself, I am more than happy to help, and thus I wish you the best of luck in your endeavour! :D

I posted the links to the books I bought and have been enjoying, please take caution before purchasing it from these links, as I posted the Amazon Canadian links as I live in Canada. Anyway, I believe either the Kaplan Premier 2016-2017 or LSAT trainer are an absolute must, although you could get away with not getting a prep company strategy set, I strongly encourage getting at the very least a comprehensive all in one. Any more questions or concerns about anything related to the LSAT please feel free to send me a message/reply.

http://www.amazon.ca/10-Actual-Official-LSAT-PrepTests/dp/0986045519/ref=sr_1_2?ie=UTF8&qid=1457253768&sr=8-2&keywords=LSAT

http://www.amazon.ca/Official-LSAT-SuperPrep-II-Champion/dp/0990718689/ref=sr_1_10?ie=UTF8&qid=1457253768&sr=8-10&keywords=LSAT

http://www.amazon.ca/Actual-Official-PrepTests-Comparative-Reading/dp/0984636005/ref=sr_1_9?ie=UTF8&qid=1457253768&sr=8-9&keywords=LSAT

http://www.amazon.ca/LSAT-Trainer-remarkable-self-study-self-driven/dp/0989081508/ref=sr_1_3?ie=UTF8&qid=1457253799&sr=8-3&keywords=LSAT

http://www.amazon.ca/gp/product/1937707784?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00

http://www.amazon.ca/gp/product/1937707776?psc=1&redirect=true&ref_=oh_aui_detailpage_o02_s00

http://www.amazon.ca/gp/product/0990718697?psc=1&redirect=true&ref_=oh_aui_detailpage_o03_s00

http://www.amazon.ca/gp/product/0986045543?psc=1&redirect=true&ref_=oh_aui_detailpage_o03_s00

http://www.amazon.ca/gp/product/0986086231?psc=1&redirect=true&ref_=oh_aui_detailpage_o05_s00

June 2015 is LSAT Prep Test 75, that and the other PTs through 80 are available as individual tests on Amazon