It occasionally fails to register a reading on a patient with small fingers, but I am so glad it is tucked in my medical bag on house calls as it is infinitely better to carry this than nothing at all! And for most adults it reads quickly and accurately.
This book has been around years and the new edition takes in new technology such as email and Twitter but the basic message is the same one Anne Dickson has been sharing for decades. We should all learn to express ourselves calmly and confidently and expect to be treated with respect and consideration. I found it very helpful and informative