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Manuel J. Smith


About the Author

Manuel J. Smith (1934–2007) was a psychologist and a pioneer in the life-changing assertiveness training movement. He was the author of a number of self-help books, including the bestseller When I Say No, I Feel Guilty, which became a standard text used in assertiveness training in schools and the workplace.

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Books by Manuel J. Smith

Books by Manuel J. Smith published by PRH Grupo Editorial

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