Too often I have heard people claim that they read their bible through every year. Sadly, too often have I observed that they probably should have read it more closely. The reality of bible study is that it only works if you actually study it, not just read it.
Paul wrote to Timothy saying, "Be diligent to present yourself approved to God, a worker who does not need to be ashamed, rightly dividing the word of truth (2 Timothy 2:15)." Take it from a man that made his way through high school with many late night cramming sessions just so I could pass a test. Unfortunately, very little of that information has survived the years in this mind of mine. To study something...I mean really study something to the point that you will not "be ashamed" takes a lot more determination.
I was told that my grandmother, who I knew for always studying her bible, had started down the path of dementia, had failed to remember the names and faces of her own children, and yet, could still quote scripture. There should be a more strict regimen for Christians that desire to know God's Way to begin investing more time into the one book that draws us closer to Him and to obedience. So to answer the question: Should you read your bible?; the answer is a resounding, YES!!