I ordered The Treasury of Health Secrets from Bottom Line Books. The books are very informative, But: here is my complaint. The bill does not have an email address or website. No phone number. I do not usually send payment by U.S.P.S. I do most all of my payments via on line banking or phone. I had to search a web yellow pages to find the information I needed. Once I found the phone number: by the way, it is 800-678-5835, I was able to call and reached a customer service associate, who was very helpful, and I was able to makde my payment in... read full review »