There has been already a lot of discussion on the topic of back pain with general over view for planning effective treatment strategies. When a patient comes to you to get help from physiotherapist, it is the resposnsibility of the physiotherapist to assess him properly to find out the possible cause for pt's back pain or spinal pain. In however, majority of the cases it is not possible to find the exact cause of low back pain. In other words after ruling out the red flags and yellow flags for Spinal pain or ruling out the serious causes of spinal pain, it is always clinician responsibility to find a possible cause for pt's pain. But as I have already mentioned that a possible cause is not found in majority of cases and patient back pain is labelled as acute non specific Back pain in acute cases. The acute non specific Back pain accounts for almost 80% cases of back pain. There are many empirical rules to treat this non specific back pain. The rest of 20% cases of Back may have other causes to be indentified and labelled in pt's treatment plan, so here you will be able to plan any suitable physiotherapy management plan. The best plan here is to use the evidence based guidelines of physiotherapy that you may use effectively. For you as a beginner, it is better to have a look over Danish Health and technology Guidelines which are very empirical and effective. You may have a look over them at Danish Health Technology Assessment 1999; 1(1) Low Back Pain

Another effective source of information for you is EUROPEAN GUIDELINES FOR THE MANAGEMENT OF ACUTE NONSPECIFIC LOW BACK PAIN IN PRIMARY CARE

Another good review is the norwegian Guidelines and you may have a look over that Acute low back pain-Interdisciplinary clinical guidelines developed by The Norwegian Back Pain Network

You may also have a look over the Gudelines developed in the USA at USA - Department of Health and Human Services, Agency for Health Care Policy and Research, Acute Low Back Problems in Adults; AHCPR Publication No. 95-0642

In my opinion this will help you to start as a beginner to get a better idea.