Arrange for a ticket, which you'll need to get from a friend who is a member. The Magic Castle is an exclusive, private, members-only club. No one is allowed in without the ticketed invitation of a current member in good standing. There are absolutely no exceptions to this rule, ever.
Consider long-term membership. If you're a magician -- or just a fan of the magical arts -- you might want to become a member at the Castle. Founded in 1908 by Milt Larsen and Bill Larsen Jr., the Academy of Magical Arts remains in the same Victorian mansion in which it was formed; since then, thousands of magic practitioners and aficionados have become card-carrying members of the club. Membership allows entrance, and a handful of guest passes.
Spring for a short-term membership. Pay $250 for a trial membership, which you can get if you're over the age of 21. The "Open Sesame" membership option is valid for one month from the start date and includes Sunday and weekday club access for the trial member and one guest.
Reach out to a performer. Very occasionally, a smaller-time performer will offer guest passes to those who ask politely. It doesn't hurt to look at the Castle schedule and reach out to the magicians scheduled to perform on the weeknight you'd like to visit.
Check the schedule and make reservations once you have a ticket. Reservations are required, so call ahead. Performances are booked at the Castle every day of the week, often with the world's most famous and sought-after performers. The Magic Castle hosts five different magic shows in three showrooms: one for big-stage magic, one for smaller-scale illusions and a final room for magic that takes place within inches of the audience. Dining is a must upon every visit, so choose your favorite nibbles: Friday lunch, Sunday brunches or a posh dinner.
Follow the dress code. Whether or not you're a full-fledged member, you won't get into the Castle if you don't follow the dress code exactly. Gentlemen must wear a coat and tie, and ladies must be attired in elegant cocktail wear. Military dress blues are also allowed. If you arrive in clothing deemed inappropriate to the code you'll be turned away without refund.
Remember your ticket and ID. Guests to almost all performances must be 21 or over with confirming photo identification. Guests must also present the guest pass to the door person to gain admittance.