You get the best MCP books if you go to the source of the information for MCP (Microsoft Certified Professional) accreditation which is Microsoft. And the publishing arm of the Microsoft organization would be Microsoft Press. Look for MCP books published by Microsoft Press which are concerned with Microsoft technologies, tools, and programs.
There are a wide range of Microsoft Press titles and they come in various categories. For instance, there are books about IT security, books concerning Microsoft Developer tools, and books regarding Microsoft servers. There are also publications about the Microsoft Office suite, about Microsoft Windows, and about the Microsoft.NET system.
In 2008, Microsoft Press will be releasing new titles that you may be interested in. For example, you could buy the title: Programming Windows_Services with Microsoft_Visual Basic_2008. At the same time, Microsoft Press will be releasing the title: 6 Microsoft_Office Business Applications for Office SharePoint_ Server 2007. Those are slated for release in January 2008.
In February 2008, you may purchase the title: Programming Microsoft_ASP.NET 3.5. Another title to be released in February would be: Microsoft_XNA Game Studio 2.0 Express: Learn Programming Now!
By April 2008, you may get this title: Inside the Index and Search Engines: Microsoft_Office SharePoint_Server 2007.
Whatever MCP accreditation you may be pursuing, there is bound to be a Microsoft Press book to fit your need.