Manuel J. Smith was a psychologist and a pioneer in the life-changing assertiveness training movement. He was the author of the bestseller When I Say No, I Feel Guilty, which became a standard text used in assertiveness training in schools and the workplace.
~~tag-text~~
The best-seller that helps you say: 'I just said 'no' and I don't feel guilty!' Are you letting your kids get away with murder? Are you allowing your mother-in-law to impose her will on you? Are you embarrassed by praise o... SEE MORE