The "Outlook 2000 VBA Programmers Reference" by Dwayne Gifford is a comprehensive textbook focusing on Visual Basic programming for Microsoft Outlook 2000. Published by Wrox Press in 1999, this 704-page paperback covers various subjects related to desktop applications, email clients, and programming languages. The book serves as a valuable resource for programmers looking to enhance their Outlook 2000 expertise with VBA.