This particular 40th birthday gift is just for men, but we’ve also written one especially for women. You can find our Survival Guide For Your Forties Female Edition here on our site.

If a friend or partner is feeling a little wistful at the thought of bidding farewell to their 30s, this book might just head off some of those anxieties. It's designed to make them smile, and to offer up a light-hearted and thoughtful take on turning 40. You can also personalize it to speak to their own experiences, and add in some reassurance alongside the jokes.

We asked humorist and author Dan Zevin to write this one for us. Dan, whose latest book is "Dan Gets a Minivan: Life at the Intersection of Dude and Dad”, was the recipient of the 2013 Thurber Award for American Humor and has a host of famous funny fans, including Adam Sandler. So yes, we’d say it was funny.

Everybody needs a laugh and a little guidance from time to time, so we’ve written a collection of survival guides for several of life’s milestones. There's our Survival Guide For Your Forties for women (naturally) which you can find here. We’ve also made a Survival Guide for New Parents, a refreshingly honest, personalized guide for people who have recently made their very own human (and who don’t mind a bit of bad language).