Wydania przez Mark Wiskup

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Cover for Mark Wiskup · Don't Be That Boss: How Great Communicators Get the Most Out of Their Employees and Their Careers (Hardcover Book) (2009)

Don't Be That Boss: How Great Co... (2009)

Cover for Mark Wiskup · Presentation S.O.S.: From Perspiration to Persuasion in 9 Easy Steps (Paperback Book) (2009)

Presentation S.O.S.: From Perspi... (2009)

Cover for Mark Wiskup · Presentation S.O.S. (Paperback Book) (2009)

Presentation S.O.S. (2009)