One Flew Over is nothing short of amazing.  If you haven't read it, do so.  It is beautiful in so many different ways, and many consider it one of the best American novels EVER written.  I could tell you my opinion why, but ultimately you should just find that out for yourself.  Notion is another investment into the lives of a blue collar Oregon family.  It's superb.  Kesey had a brilliant mind and a wonderful way with words.  He was a football player, a fantastic wrestler, a poet, a writer, got his undergrad at the UO, his masters at Stanford, lived outside of pleasant hill, was a complete family man and yes, had a passion for altering his mind with LSD, and encouraged others to "take the test" in his younger years.  If the issue is that you think it encourages drug use, you've obviously lost focus.  We all should know that fighting abuse is done through education.  It's not done by hiding the past.  We should honor him as much as possible for the incredibe literary master he was.