Carl Hiaasen is bringing his caustic humor and clear-eyed observations to a new advice book:Assume the Worst.

He dispenses practical guidance while also sounding an alarm.

Graduation speakers are supposed to offer encouragement and inspiration, he writes.

2017 Miami Book Fair

Credit: Johnny Louis/WireImage

Thats not what you need.

You need a warning.

Theres still some beauty to be found inAssume the Worst, however its designed by the greatNew YorkercontributorRoz Chast.

Read on for more, and look out forAssume the Worstwhen its published by Knopf in April.

The key is staying pissed off and energized.

Theres nothing more tedious than a lazy cynic.

Its a fact, though not particularly uplifting.

Do the best with whatever youve got.

You say that the odds are stacked against graduates.

Everything you do or might dream of doing is instantly judged, often by random nitwits.

Youve got be tougher now, and more clever, than my generation of graduates.

How and why did Roz Chast get involved?

How did you two work together?Roz and I have e-mailed, but weve never met.

They sent her the speech, and a few weeks later she sent back all these hilarious drawings.

It was obvious that were both fans of Darwin.

What steps do you hope readers take after reading the book?Do I sound like Deepak Chopra?

This book isnt a survival guide; its just a friendly warning about the real world.