Introduction

You made the right choice twice: OS X Yosemite (OS X 10.10) and this book. Take a deep breath and get ready to have a rollicking good time. That's right. This is a computer book, but it's fun. What a concept! Whether you're brand spanking new to the Mac or a grizzled Mac vet, I guarantee that reading this book to discover the ins and outs of OS X Yosemite will make everything easier. The publisher couldn't say as much on the cover if it weren't true!

About This Book

This book's roots lie with my international best seller Macintosh System 7.5 For Dummies, an award-winning book so good that now-deceased Mac cloner Power Computing gave away a copy with every Mac clone it sold. OS X Yosemite For Dummies is the latest revision and has been, once again, completely updated to include all the tasty OS X goodness in Yosemite. In other words, this edition combines all the old, familiar features of previous editions - but is once again updated to reflect the latest and greatest offering from Apple as well as feedback from readers.

Why write a For Dummies book about Yosemite? Well, Yosemite is a big, somewhat complicated personal-computer operating system. So I made OS X Yosemite For Dummies a not-so-big, not-too-complicated book that shows you what Yosemite is all about without boring you to tears, confusing you, or poking you with sharp objects.

In fact, I think you'll be so darned comfortable that I wanted the title to be OS X Yosemite Made Easy, but the publishers wouldn't let me. Apparently, we For Dummies authors have to follow some rules, and using For Dummies and OS X Yosemite in this book's title are among them.

And speaking of "dummies" - remember, that's just a word. I don't think you're a dummy at all - quite the opposite! My second choice for this book's title was OS X Yosemite For People Smart Enough to Know They Need This Book, but you can just imagine what Wiley thought of that. ("C'mon, that's the whole point of the name!" they insisted. "Besides, it's shorter our way.")

The book is chock-full of information and advice, explaining everything you need to know about OS X in language you can understand - along with timesaving tips, tricks, techniques, and step-by-step instructions, all served up in generous quantities.

Another rule we For Dummies authors must follow is that our books cannot exceed a certain number of pages. (Brevity is the soul of wit, and all that.) So I wish I could have included some things, but they didn't fit. Although I feel confident you'll find everything you need to know about OS X Yosemite in this book, some things bear further looking into, including these:

• Information about some of the applications (programs) that come with OS X Yosemite: An installation of OS X Yosemite includes roughly 50 applications, mostly located in the Applications folder and the Utilities folder within it. I'd love to walk you through each one of them, but that would have required a book a whole lot bigger, heavier, and more expensive than this one.

  I brief you on the small handful of bundled applications essential to using OS X Yosemite and keep the focus there - namely, Calendar, Contacts, Messages, Mail, Safari, TextEdit, and the like-as well as important utilities you may need to know how to use someday.

  For what it's worth, many books cover the applications that come with OS X Yosemite, as well as applications commonly bundled with Yosemite on a new Mac, such as iLife; the one my publisher suggested I recommend is OS X Yosemite All-in-One For Dummies, written by Mark L. Chambers, which is (of course) also published by Wiley.

• Information about Microsoft Office, iLife, iWork, Adobe Photoshop, Quicken, and most other third-party applications: Okay, if all the gory details of all the bundled (read: free) OS X Yosemite applications don't fit here, I think you'll understand why digging into third-party applications that cost extra was out of the question.
• Information about programming for the Mac: This book is about using OS X Yosemite, not writing code for it. Dozens of books - most of which are two or three times the size of this book - cover programming on the Mac; this one doesn't.

Conventions Used in This Book

To get the most out of this book, you need to know how I do things and why. Here are a few conventions I use in this book to make your life easier:

• When I want you to open an item in a menu, I write something like Choose File?Open, which means, "Pull down the File menu and choose the Open command."
• Stuff you're supposed to type appears in bold type, like this.
• Sometimes an entire sentence is in boldface, as you see when I present a numbered list of steps. In those cases, I leave the bold off what you're supposed to type, like this.
• Web addresses, programming code (not much in this book), and things that appear onscreen are shown in a special monofont typeface, like this. (If you're reading an e-book version of this book, web addresses are clickable links.)
• For keyboard shortcuts, I write something like +A, which means to hold down the key (the one with the little pretzel and/or symbol on it) and then press the A key on the keyboard. If you see something like +Shift+A, that means to hold down the and Shift keys while pressing the A key. Again, for clarity, I never refer to the key with the symbol. I reserve that symbol for the menu (Apple menu). For the Command key, I use only the symbol. Got it? Very cool.

Foolish Assumptions

Although I know what happens when you make assumptions, I've made a few anyway. First, I assume that you, gentle reader, know nothing about using OS X - beyond knowing what a Mac is, that you want to use OS X, that you want to understand OS X without having to digest an incomprehensible technical manual, and that you made the right choice by selecting this particular book. And so I do my best to explain each new concept in full and loving detail. Maybe that's foolish, but . that's how I roll.

Oh, and I also assume that you can read. If you can't, ignore this paragraph.

Beyond the Book

I have written a lot of extra content that you won't find in this book. Go online to find the following:

• The Cheat Sheet for this book is at

  www.dummies.com/cheatsheet/osxyosemite

• Online articles covering additional topics at

  www.dummies.com/extras/osxyosemite

• Updates to this book, if we have any, are at

  www.dummies.com/extras/osxyosemite

Icons Used in This Book

Little round pictures (icons) appear off to the left side of the text throughout this book. Consider these icons miniature road signs, telling you a little something extra about the topic at hand. Here's what the different icons look like and what they all mean.

Look for Tip icons to find the juiciest morsels: shortcuts, tips, and undocumented secrets about Yosemite. Try them all; impress your friends!

When you see this icon, it means that this particular morsel is something that I think you should memorize (or at least write on your shirt cuff).

Put on your propeller-beanie hat and pocket protector; these parts include the truly geeky stuff. It's certainly not required reading, but it must be interesting or informative, or I wouldn't have wasted your time with it.

Read these notes very, very, very carefully. (Did I say very?) Warning icons flag important cautionary information. The author and publisher won't be responsible if your Mac explodes or spews flaming parts because you ignored a Warning icon. Just kidding. Macs don't explode or spew (with the exception of a few choice PowerBook 5300s, which won't run Yosemite anyway). But I got your attention, didn't I?

These icons represent my ranting or raving about something that either bugs me or makes me smile. When I'm ranting, imagine foam coming from my mouth. Rants and raves are required to be irreverent, irrelevant, or both. I try to keep them short, for your sake.

Well, now, what could this icon possibly be about? Named by famous editorial consultant Mr. Obvious, this icon highlights all things new and different in OS X Yosemite.

Where to Go from Here

The first few chapters of this book are where I describe the basic things that you need to understand to operate your Mac effectively. If you're new to Macs and OS X Yosemite, start there.

Even though OS X Yosemite is somewhat different from previous Mac operating systems, the first part of the book is so basic that if you've been using a Mac for long, you might think you know it all - and okay, you might know most of it. But hey! Not-so-old-timers need a solid foundation. So here's my advice: Skip the stuff you know; you'll get to the better stuff faster.

I would love to hear how this book worked for you....