Apple , every year hosts Tech Talk developer session worldwide. These session are similar to that happens during WWDC in June, but this one is on bigger scale. This year’s iOS 7 Tech Talks started in October & continues till December, it covered cities like London, New York and Shanghai.For those who didn’t attend it, apple has posted the content on Developer portal.

Apple posted PDF slide decks and videos from this year’s Tech Talks tour to its developer portal. The sessions covered various topics including App Store distribution, UI design, security, privacy and more.

From Apple Developer Portal

“Get in-depth guidance about developing for iOS 7, learn practical coding tips and tricks, and obtain valuable one-on-one programming and design assistance in our lab. Choose which day is best for you — app developer day or game developer day. Apply now.”

These materials are available to all registered developers.