I have mentioned The Trigger Point Therapy Workbook several times on the forum and Luvsminis asked again about it. I don't even remember how I found out about this book but I bought it several years ago. We have trigger points in our muscles and much of our pain is referred pain. For example, I was having a miserable night because of sharp pain in my side. I couldn't get comfortable in bed and it really hurt to breathe. I got up, got out this book and saw that the area of pain I was having was caused by a trigger point in my back! We have trigger points that run along the sides of the spinal column...not on the spine itself.
I needed to press on that trigger point as hard as I could and then massage the area but it was in the middle of my back and I live by myself. I got a tennis ball and used that against the wall. I found the spot because it was highly tender, pressed the ball into that area by leaning hard against the wall, and then I moved slightly to simulate massaging. I repeated it and the trigger point wasn't quite as tender. I repeated this for about ten minutes until it wasn't nearly as tender as it was in the beginning AND, my side wasn't hurting that bad, either. I went back to bed, slept just fine, and my side was fine in the morning.
I have used this book for many things but recently to help with a frozen shoulder, too. My shoulder started hurting me about two years ago. I thought I pulled a muscle but really couldn't remember doing that. I was having pain in my bicep that would awaken me several times a night and if I moved my arm in my sleep, I would wake up with the jolt of pain.
I got so I couldn't lift my arm up, couldn't shave, couldn't hold my hair blower without extreme pain, couldn't reach behind my back any higher than my butt, couldn't put my arm out to my side, couldn't reach for anything without extreme pain, etc. I think you have the picture. I never mentioned this to my doctor since I thought it was a pulled muscle but last November I had a doctor's appointment. He had me lay on the table so he could mash around my abdomen (just LOVE that!). When I tried to get up, I used that left arm. I gasped and fell back down again. He helped me to a sitting position and asked what was going on so I told him I thought I pulled a muscle. He checked my range of motion and it barely existed. He offered to give me a cortisone shot in the shoulder but I declined. Prednisone can be a nasty med plus I have osteoporosis and prednisone can thin the bones. He sent me for physical therapy instead and I had ten sessions, I think. I was given some fibro-friendly exercises to do and did get some range of motion back but I just knew I could do better. Did I mention I'm a perfectionist? 
I got out this workbook, looked up the rotor cuff, and saw where the trigger points were for that type of pain. So many muscles run into the shoulder...the chest muscles, the muscles from the back and shoulder blade, the arm muscles and even the neck muscles. I worked on the trigger points with my hands since I could reach them and massaged them. I would do this while watching TV, laying in bed, etc. and I have gotten better and better.
I also get a massage once a month from a neuromassage therapist and she worked on the trigger points, too.
I now can raise my arm almost as high as my other arm, hold my hair blower with ease, put my arm out to my side, shave, lift things in the cupboard, get things out of my above the stove microwave with the arm that was bad, reach behind my back all the way up to my waist, etc. I'm using the "bad" arm without thinking and without pain, too. I'm not 100% there but am about 80% better...in a six month period of time.
The workbook can be used for pain in various parts of our body and I have used it too. It beats narcotics and prednisone! The book is a nice size so the printing is larger and it's a paper-backed book. There are diagrams showing the muscles for the area you are having problems and then dark dots to show where to look for the trigger points. It really is a neat book and has helped me a lot.
I got mine on Amazon and it's a little over $16.00 so it was an excellent investment for me. If you order other things on Amazon like I do, add something worth at least $9.00 and you even get free shipping!
Below is the link to it. Amazon lets you read part of the book so you can check it out and see what you think. I hope this can help others like it's helped me.
http://www.amazon.com/Trigger-Point-Therapy-Workbook-Self-Treatment/dp/1572243759
Sherrine