This guide is no longer updated. A new guide will be coming soon.
The Monk gets fewer skill points and proficiency in skills than some classes. As with any class, more ability points in INT can improve your skill points by a bit. But have more than one better reason to use INT than for more points (such as taking Combat Expertise).
The Monk has a handful of class skills that can benefit you.
ALWAYS add points to your Concentration skill whenever you can. Use Focus items to improve your Concentration score. Ki is the expression of your mystical abilities, and Concentration is its source.
Update 19 dramatically changed the importance and usefulness of Hide, Move Silently, Tumble and Jump, adding strategic changes that allow you to jump while stealthed, or to escape a chasing mob by re-hiding.
For more, see "The Power of Shadow: Stealth Tactics".
Notes from the Old Master:Stealth, or Magic?
It is surprising how many adventurers get their heads removed from their bodies and handed back to them, all because they are too bothered to learn a few ways to hide to avoid a fight, at least until the right time.
Invisibility has its uses. Students with some basic Ninja Spy skills can bend their ki into Invisibility at will. Yet I have found and defeated more than a few of these ninjas because they stomp about loudly like a drunken, fat, bow-legged minotaur! Invisibility is immunity to Spot, not my hearing. Use your Move Silently skill and try to sneak up on your enemy.
Some creatures can see through Invisibility...like me, by way of True Seeing, making the spell useless. Yet I will have a far harder time detecting Teacher Syncletica and her most gifted students who have learned the art of Hiding and Moving Silently.
Often, foes who can see through Invisibility cannot detect you while in stealth, giving you an edge to defeat them before they know you were nearby. Don't believe me? Try Invisibility against a Xoriat beholder and get back with me--from the afterlife!
Now get back to your waxing.