Karen Notsalmon’s Quick Read –> Instant Happy
I met Karen Salmansohn (www.notsalmon.com) through her work on the Big Beacon’s posters & book cover (see 
www.facebook.com/bigbeacon), and since then I’ve become a big fan of her posters. She talks about internet posters as pattern interrupts (see here), and I do find that when my day is headed in a bad or unproductive direction emotionally, that seeing one of her posters can disrupt my negativity and redirect me in more productive and energizing ways.
Her book Instant Happy is a collection of such posters sequenced in a way to get you reflecting differently about your emotions and your life.
For a quick and lasting attitude readjustment, you can do worse than to pick up Instant Happy today.