I bought Petzold, "Programming Windows with C#" and Pappas & Murray, "C# for Windows Programming" at roughly the same time. Petzold's book is long and thorough. It took me about 6 days of working through the book, but when I was done (in April), I had what I needed to write a small (~10000 lines, 1/2 of it GUI code out of the Visual Studio .NET GUI editor) commercial application that just hit the shelves two weeks ago (in July). In addition to a thorough introduction to Windows Forms programming, the book introduced readers to a variety of other .NET framework classes that I actually ended up using. Information was accurate (with a few exceptions due to changes between the betas and the final .NET code) and well organized. Petzold was careful to warn readers about techniques that might look appealing but would cause trouble later, and explained why they might cause trouble.

So now that I can breath again, I thought I'd work through the Pappas & Murray book. What a joke. These guys must have been working under an unrealistic deadline, because I've never seen a book padded with so much fluff and so little usable content. At least two of the examples won't work as published, the descriptions of the event handlers are 23 pages of repetitive cut and paste that could have been cut down to 5 pages with a little thought, enumeration values for three or four MessageBox parameters were munged together in one table so that you couldn't tell which values to use with which parameters, and so on and so on. Code was sloppy - techniques they used that worked for their small examples would be dangerous if used generally in larger programs. This book is worse than just "beginner", it will lead beginners wrong.

I won with Petzold's book, and lost with Pappas & Murry's. Fortunately I read Petzold's when it counted.