Definitely not required reading.
Legends of the Dark Knight 4 is just a mish-mosh of Batman tales by different authors. A few are decent, some are just trippy, and a few downright suck.
But none of them are great.
I Hate it When He Does That tells how (a much too) young Bruce Wayne learns the art of fading into the shadows. He and Alfred find a girl in Thailand, help rescue her from corrupt government official, and she teaches him the Ways of the Force.
Why did Alfred ever agree to any of this bullshit? Toss that kid on a plane, and get the hell out of that cesspool!
Riddler in the Dark is a decent story by Charles Soule. Unsurprisingly, Soule has written one of the better issues.
Riddler needs Batman to help him, but just can’t bring himself to ask the nice way.
The Pain Cellar is about a childhood memory of Bruce’s that resurfaces, Arm Candy is about another new girlfriend, and The Notebook is about a reporter who’s shadowing Bruce for the day.
All of these are written by Frank Hannah, only a few pages long, and all make one (issue?) interconnecting story arc together.
The Beautiful Ugly is a dark and depressing Two-Face story.
No redemption for you! <—That was me doing my Soup Nazi voice, btw.