I am a fan of Dave Barry and enjoyed his columns. I have not read his fiction. Dave Barry Slept Here, a parody of American history written around 1990, is both amusing and often accurate. The illustrations for his columns were drawn by the cartoonist behind the Shoe comic strip. (He died before Barry stopped writing his column in 2005).
His autobiography, which quotes significantly from his columns, is overall light and enjoyable. It has some serious moments, including involving his parents. Barry does not talk much about his family overall, including once referencing his first two marriages. He notes he will not discuss those two wives to protect their privacy, except to say they were good people and his divorces were not their fault.
His Wikipedia page has a link to a marriage announcement, but it does not say when he was divorced from his first wife. Beth is the mother of his son, often referenced in his columns, and his "TV" wife in the sitcom sorta -- he has two sons there -- based on his life.
Barry talks about his father's fighting alcoholism and his mother's suicide. A 1991 Newsweek profile added that one of his brothers is also an alcoholic, and his sister (not referenced in the acknowledgements; she's older than him and I assume she died) is an institutionalized schizophrenic. Not referenced in the book. It is not some tell-all.
Barry does talk about his childhood, early career, and road to being a humor columnist. He puts forth a general happy-go-lucky exterior but clearly has a serious side. It comes out from time to time. For instance, he wrote a book with a title referencing one of his dogs that has some serious moments.
He notes his opinion that the liberal leaning media, thinking Trump is horrible (which he agrees with), slanted their coverage against him. Barry acknowledges that many intelligent people he respects do not agree. They are right.
At the very least, they did not go soft on Hillary Clinton. How much that led to her losing is unclear, though some will blame it on that, but it was fairly blatant. He should have referenced that if he was going to editorialize.
One other annoying thing was his late comment that, overall, everything would turn out okay. This is somewhat curious after Covid.
Also, regarding stuff he said that everyone keeps on saying might happen but don't, I think fascists have taken over. This book was published after Trump won again, though perhaps he finished it beforehand. Finally, no, it won't always be okay. For some people, it won't be.
I am not saying he is completely wrong. On some level, I think he has a point. It still is (1) harder to say these days (2) needs an asterisk. Things might have gone great for him, for instance, but that isn't true for some people. Coming from him, with his happy-go-lucky life, it is a bit too much.
Overall, however, it was an enjoyable book.
==
Note: One book review, which I won't try to find, noted he still looks quite boyish. His author photo, however, doesn't look very youthful. Also, some photos online particularly make him look his age (77).
He still has a boyish vibe.