Barker, Peter. : Dark persuasion for beginners. Ultimate Guide to Persuasion Techniques, Mind Control, and Influencing People with Dark Psychology [Hoopla electronic resource] / Peter Barker.
Barker, Raymond Charles. : The power of decision : a step-by-step program to overcome indecision and live without failure forever [Hoopla electronic resource] / Raymond Charles Barker.
Barker, Stephen, / illustrator. : Where's the busy bee? : ...is it in the tree? / written by Sam Taplin ; illustrated by Lindsay Sagar and Stephen Barker.
Barker, Tess, / author. : Medical marijuana : beat stress, sleep better, relieve pain & fight disease / Craig Tomashoff ; contributing writers, Tess Barker, Steve Bloom, Joanna Cachapero, Tom Cunneff, Alan Di Perna, Joe Dolce, Anne Driscoll, Nicola Farris, Sabrina Ford, Lisa Greissinger, Erik Himmelsbach-Weinstein, Nicole Pajer, Maria Speidel, Irene Zutell.
2020
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Barker, Tom, / author. : Learn from the Experts about Being Performance-First [O'Reilly electronic resource] : Tom Barker / Barker, Tom. [O'Reilly electronic resource]
Barker, Valentine, / artist. : The airless year / written by Adam P. Knave ; art by Valentine Barker with flatting by Diane Barker ; letters by Frank Cvetkovic.
Barker, Yolanda, / author. : The breathing revolution : train yourself to breathe properly to banish anxiety and find your inner calm / Yolanda Barker.
