APress is currently offering five free downloadable Ebooks. All of them are about programming, so those who want to learn more about programming should take advantage of this special offer.

Here are the free downloadable EBooks that they offer. Click on the title link for direct download.

1. A Programmer’s Introduction to PHP 4.0
   

   No matter what language you are familiar with, this book will benefit you. Beginning with a rapid introduction to PHP’s syntax and basic functionality, you will swiftly understand PHP. The book then steers you toward advanced issues, like PHP’s role in database manipulation, sessions, and user interactivity.

2. Writing Perl Modules for CPAN
   

   Writing Perl Modules for CPAN offers Perl developers a comprehensive guide to using and contributing to the Comprehensive Perl Archive Network (CPAN). Starting with a general overview of CPAN’s history, network topology, and navigational mechanisms, the book quickly brings you up to speed regarding how to search out and install available modules. However, in the true open source spirit, author and experienced Perl developer Sam Tregar teaches you how to not only use, but also contribute to CPAN via an in-depth discussion of module creation, submission, and maintenance.

3. Programming VB .NET: A Guide For Experienced Programmers
   

   In Programming VB .NET: A Guide for Experienced Programmers, authors Gary Cornell and Jonathan Morrison carefully explain the exciting new features of Visual Basic .NET. Since VB .NET is, for all practical purposes, a whole new language even for the most experienced Visual Basic programmers, developers need to think differently about many familiar topics. Cornell and Morrison are there to help you with careful discussions of each topic.

4. COM and .NET Interoperability
   

   COM and .NET Interoperability provides a complete overview of the process of building .NET applications that interact (interoperate) with existing COM code. Before digging into that critical topic, author Andrew Troelsen offers a concise overview of the COM architecture and provides examples using various COM frameworks (C++, ATL, and VB 6.0) as well as the core .NET managed languages (C# and VB .NET).

5. Dissecting a C# Application: Inside SharpDevelop
   

   Learn advanced .NET programming techniques by getting an insider’s look at a complete application!

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