Site Offer UNIX application programming requires a mastery of system-level services. Making sense of the many functions in the current UNIX specification is a daunting task (in excess of 1,100). For years, programmers have turned to Advanced UNIX Programming for its clear, expert advice on how to use the key functions reliably.

Since 1985, the one book to have for mastering UNIX application programming has been Rochkind's Advanced UNIX Programming.

Now completely updated, Advanced UNIX Programming (http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000055369&affid=tre), Second Edition, remains the choice for up-to-the-minute, in-depth coverage of the essential system-level services of the UNIX family of operating systems. Advanced UNIX Programming (http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000055369&affid=tre) brings the book fully up to date, with all-new comprehensive coverage including:

• POSIX
• Solaris™
• Linux®
• FreeBSD
• Darwin, the Mac™ OS X kernel
• And more than 200 new system calls

Register readers can get Advanced UNIX Programming (http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000055369&affid=tre), the completely updated classic guide to UNIX® programming, for just £24.49.

With the expected pan-European launch of Apples European version of its iTunes Music Store today, the Register bookshop has hand picked five essential iTunes and iPod titles to ensure you're ready for this music revolution.

• iTunes 4 for Macintosh and Windows (http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000070568&affid=tre)
  RRP £14.99 - Reg price - £10.49 - Saving £4.50 (30%)
  With its iTunes Music Store dubbed the No. 1 download music service in the world and a slew of new features designed to make the digital music experience easier, better, and accessible to all, iTunes 4 is turning the music world on its ear.
  
• iTunes for Windows Book, The (http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000074195&affid=tre)
  RRP £10.99 - Reg price - £7.69 - Saving £3.30 (30%)
  Best-selling author Scott Kelby provides Windows users with a quick, concise intro to the world of iTunes!
  
• Secrets of the iPod (http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000065538&affid=tre)
  RRP £14.99 - Reg price - £10.49 - Saving £4.50 (30%)
  Here to help both Mac and PC users begin using their iPods effectively and efficiently is a fun, practical, thoroughly updated volume from popular Mac columnist and author Christopher Breen.
  
• Little iTunes Book, The (http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000050689&affid=tre)
  RRP £14.99 - Reg price - £10.49 - Saving £4.50 (30%)
  If you’re a computer user and an audio junkie, iTunes 4—with its brand-new iTunes Music Store—just might be the answer to your prayers.
  
• iLife '04 in a Snap (http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000042136&affid=tre)
  RRP £17.99 - Reg price - £12.59 - Saving £5.40 (30%)
  The quick, efficient way to find out how to work with iLife—Apples popular and powerful suite of digital media tools.

More featured titles also reduced by 30%:

• Defend I.T. (http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000040100&affid=tre)
  RRP £26.99 - Reg price - £18.89 - Saving £8.10 (30%)
  plethora of real-life case studies illustrate how to secure computer networks and provide examples on how to avoid being attacked.
  
• IT Architecture Toolkit (http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000072370&affid=tre)
  RRP £35.99 - Reg price - £25.19 - Saving £10.80 (30%)
  Practical approach to successful delivery of business information -- suggested reading for anyone in a systems development environment.
  
• Ad Hoc Wireless Networks (http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000070260&affid=tre)
  RRP £70.99 - Reg price - £49.69 - Saving £21.30 (30%)
  Expert guide to the fundamental concepts, issues, and state-of-the-art developments in Ad Hoc Wireless Networking.
  
• Visual FoxPro to Visual Basic .NET (http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000073764&affid=tre)
  RRP £28.99 - Reg price - £20.29 - Saving £8.70 (30%)
  This book is a how-to book for Visual FoxPro developers. It describes the FoxPro development process and describes the VB .NET equivalents.
  
• 90-Minute Manager (http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000078233&affid=tre)
  RRP £14.99 - Reg price - £10.49 - Saving £4.50 (30%)
  Football is the setting for one of the purest forms of management - and the most transparent. In an age when club football is more of a business than ever before, suddenly it seems business is getting more and more like football. What better time to learn the lessons from the very best - and worst - of the ultimate man management game.
  
• The Definitive Guide to Project Management (http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000037672&affid=tre)
  RRP £19.99 - Reg price - £13.99 - Saving £6.00 (30%)
  The Definitive Guide to Project Management will show you, step by step, how to deliver the right projects in the right way at the right time, while keeping your life in balance.
  
• Corporate Valuation (http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000017393&affid=tre)
  RRP £19.99 - Reg price - £13.99 - Saving £6.00 (30%)
  In Corporate Valuation, for the first time, you are given insight into the most universal issues in corporate valuation.
  
• The Financial Times Guide to Investing (http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000029249&affid=tre)
  RRP £21.99 - Reg price - £15.39 - Saving £6.60 (30%)
  No need to be baffled any longer by a flurry of information, data, facts and comments, impenetrable waves of jargon, and the complexities of the financial markets.

To browse or buy the other great discounted titles available to Reg readers, simply click on any of the links below:

• The Reg Bestsellers (http://www.pearson-books.com/thereg/bestsellers/)
• Last week at The Reg (http://www.pearson-books.com/thereg/lastweek/)
• Great new releases (http://www.pearson-books.com/thereg/newreleases/)
• This weeks book bag (http://www.pearson-books.com/thereg/thisweek/)