This book came out a while ago yet it remains the best collection available. The various Jewish joke and humor anthologies published recently don't even come close and some are quite shoddy. This definitive, well-illustrated and definitely very "big" volume covers all types of humor from literary to stand-up to historical and more, with jokes, literary excerpts, yiddish curses, and representative selections from famous humorists and comedians as well as from obscure ones. You will find all your favorites here and you will discover some new favorites too. Perhaps the time has come for these authors to do a sequel? No one since them seems to be up to the task.
Addendum: I posted the paragraph above a decade ago for the original edition of this book. There's a new 25th Anniversary edition now. While the humor is just as good as before, I must say that this new edition is possibly a missed opportunity. There has been quite a lot of excellent new Jewish humor in the past 25 years, some of it worthy of inclusion here, but the editors have chosen just to reprint the old edition with a different colored cover and an updated preface. Maybe they didn't want to tinker with a classic, but it may be time for a "New" Big Book of Jewish humor that acknowledges new humorists and new targets for satire.