For their book, “The Wisdom of Failure,” authors Laurence Weinzimmer and Jim McConoughey interviewed 1,000 managers and leaders on one of my favorite topics: failure. The results comprise a fascinating volume on the benefits of blunders.

Here are some insights from their book.

What can understanding failure teach both seasoned and aspiring leaders that they can’t learn only by modeling success?

While studying success provides valuable lessons during good times, often these lessons aren’t applicable in hard times. The road isn’t always smooth and the sky isn’t always blue. When challenges present themselves, lessons gleaned from previous failures can help leaders avoid making the same mistake twice or making the wrong decisions.

Making mistakes — or failing — are part of taking healthy risk. They provide us with new ways of thinking and give us new insights into how we can improve as leaders.

Did you ever find yourself questioning an arrangement between yourself and another person? Not an arrangement that was mutually agreed upon or even spoken about –- but a habit, or series of habits that detrimentally affect you but which you find yourself continuing to do nevertheless?

It could be between yourself and a partner, a parent, a co-worker — even a boss, an adult sibling or an annoying someone you run into every day on your way to work. Likely, it is doing something to temporarily boost yourself or the other person in the mix. Ultimately, however, it is not to anyone’s benefit.

Unspoken bargains, these so-called “arrangements,” are those things that rear their heads in times of challenge, chaos, crisis or just haste. They appear out of nowhere and can be maddening, upon first reflection, demanding us to ask ourselves, “why did I say or do that again to this person?”

“Until one is committed, there is hesitancy, the chance to draw back, always ineffectiveness. Concerning all acts of initiative (and creation), there is one elementary truth, the ignorance of which kills countless ideas and splendid plans: that the moment one definitely commits to oneself, then Providence moves too. All sorts of things occur to help one that would never otherwise have occurred. A whole stream of events issues from the decision, raising in one’s favor all manner of unforeseen incidents and meetings and material assistance, which no man could have dreamt would have come his way. I learned a deep respect for one of Goethe’s couplets:

‘Whatever you can do or dream you can, begin it.
Boldness has genius, power and magic in it!’”
~W. H. Murray

As we ride the planet around the sun, life can sometimes be hard and complicated. We dream of living better lives or achieving great goals. For many, our present lives result from being born into difficult circumstances or surviving tragedies.

No matter where we find ourselves, it is also a result of all the choices we’ve made along the way.

As soon as your body hits the bed, it’s like a gun firing at the starting line. Your thoughts take off like a pack of horses, each thought racing faster than the first.

Did I do everything on my list? Did I pay the cable bill? What’s the due date on that project, again? Work has been so demoralizing lately. But I can’t quit. I’ll never find another job in this economy.

I’m screwed.

It’s this kind of internal racket that hinders sleep for many people night after night. In their book Goodnight Mind: Turn Off Your Noisy Thoughts & Get a Good Night’s Sleep, authors and sleep specialists Colleen E. Carney, Ph.D, and Rachel Manber, Ph.D, delve into the many reasons our minds keep us from sleeping. They provide valuable tips and techniques that address these culprits.

There’s a disconnect between how we treat sick people and how they want to be treated, according to Letty Cottin Pogrebin, author of the new book How to Be a Friend to a Friend Who’s Sick.

We stay silent. We say stupid things. We go from being sensitive, sensible, kind adults to rambling niceties or making downright rude remarks.

Illness, understandably, makes us nervous.

Fortunately, Pogrebin’s book helps us navigate the muddied waters of illness and mortality. It’s packed with practical tips and valuable insights.

Pogrebin was inspired to write the book after observing the varied reactions from her own friends to her breast cancer diagnosis. Some friends misunderstood her needs and acted awkwardly. Others were supportive and compassionate.

In the book, she shares these personal experiences, along with powerful accounts of people offering support to others. She also shares the words of almost 80 of her fellow patients at Memorial Sloan Kettering Cancer Center. She interviewed these individuals to find out how they really wanted to be treated.

Instead of living deliberately, many of us live by default, according to Polly Campbell in her thoughtful book Imperfect Spirituality: Extraordinary Enlightenment for Ordinary People.  

She gives several powerful examples: We vote a certain way because our parents do. We work a numbing number of hours because we’re taught this makes us good providers. We sabotage our successes because we’re taught that wanting money is akin to greed.

In the midst of clinging to these old concepts, we forget the most important idea of all: living from our authentic values.

Clinical depression is debilitating. But it’s also highly treatable.

And while you’re getting treatment — whether through medication, psychotherapy or both — there are many ways you can manage your symptoms in the meantime.

In his valuable book Depression: A Guide for the Newly Diagnosed, clinical psychologist Lee H. Coleman, Ph.D, ABPP, provides tips on minimizing symptoms and getting better while you’re receiving professional help.

Here are five of his suggestions.

“A common trait of people with ADD is the uncanny ability to lose things,” writes psychotherapist Stephanie Sarkis, Ph.D, in her helpful book 10 Simple Solutions for Adults with ADD: How to Overcome Chronic Distraction & Accomplish Your Goals.

For instance, you might lose everything from your keys to your phone to important papers. And this can cost you both time and money, Sarkis says.

In her book she offers a variety of valuable tips to stop losing your things along with advice on what to do if you do lose something. Here’s a selection of her suggestions.

Have you ever fallen in love? Then you know what the poets, songwriters, gurus, playwrights, …

Sir Winston Churchill, who battled plenty of demons, once said, “When I look back on all these worries, I remember the story of the old man who said on his deathbed that he had a lot of trouble in his life, most of which had never happened.”

Unfortunately that advice wouldn’t have been able to stop me from praying rosary after rosary when I was in fourth grade to avert going to hell, nor does it quiet the annoying noise and chatter inside my brain today in any given hour. But the fact that a great leader battled the worry war does provide me some consolation.

It doesn’t matter whether you are a chronic worrier without an official diagnosis or battling severe obsessive-compulsive disorder (OCD), a neurobehavioral disorder that involves repetitive unwanted thoughts and rituals. The steps to overcome faulty beliefs and develop healthy patterns of thinking are the same.

Having a partner who struggles with anxiety or has an anxiety disorder can be difficult.

“Partners may find themselves in roles they do not want, such as the compromiser, the protector, or the comforter,” says Kate Thieda, MS, LPCA, NCC, a therapist and author of the excellent book Loving Someone with Anxiety.

They might have to bear the brunt of extra responsibilities and avoid certain places or activities that trigger their partner’s anxiety, she said. This can be very stressful for partners and their relationship.

Most people diagnosed with depression today aren’t depressed, according to Edward Shorter, a historian of psychiatry, in his latest book How Everyone Became Depressed: The Rise and Fall of the Nervous Breakdown. 

Specifically, about 1 in 5 Americans will receive a diagnosis of major depression in their lifetime. But Shorter believes that the term major depression doesn’t capture the symptoms most of these individuals have. “Nervous illness,” however, does.

“The nervous patients of yesteryear are the depressives of today,” he writes.

And these individuals aren’t particularly sad. Rather, their symptoms fall into these five domains, according to Shorter: nervous exhaustion; mild depression; mild anxiety; somatic symptoms, such as chronic pain or insomnia; and obsessive thinking.