Indy in Depth

Indy in Depth is an e-book written by the Indy experts themselves. Indy in Depth covers from the very basic introduction to sockets, all the way up to advanced usage. Whether you are an absolute beginner and have never programmed sockets before, or you are an advanced socket developer, Indy in Depth has material suited for you.

Important Note

Indy in Depth has not been updated since 2005 and should be considered static content. Despite this, Indy has been stable since the same time and only security and other fixes have been applied. This leaves Indy in Depth current against the Indy source.

At some point we plan to update the book further however it is written in a very old authoring system and importing content to a newer system presents significant work.

Indy 9 and 10

Indy in Depth has  been split and has been updated for Indy 10. The Indy 9 book is also provided for your use as well, however all new updates are going only into the Indy 10 version.

It’s an e-book!

Indy in Depth is distributed as an e-book because in this day and age, paper books become out-dated too quickly. Indy in Depth is distributed as a watermarked Adobe Acrobat PDF.

What does it cover?

The focus of this book is on the core components such as TCP client, TCP Server, command handlers, building protocols, etc. The current focus is not on the actual protocols but basic content for such is now being added. These protocols include SMTP, POP3, HTTP and others. Before purchasing you can view the current table of contents online.

Bonus Materials

Indy in Depth is currently contains 371 pages including bonus materials (Indy material is about 200 pages).

The book is also scheduled in the future to contain many bonus chapters on other topics such as box testing, development methodologies, database design and more. All of these will be provided at no additional cost. For a list of bonus materials, please check the online table of contents.

Broken Internet Links

Internet URLs are contained and linked in the book in some places. Currently some of them are scrambled and do not work properly. This is an issue with the PDF output mechanism of the authoring software used.


  • Chad Z. Hower a.k.a Kudzu – Original Indy Author and Indy Project Coordinator
  • Hadi Hariri – Indy Project Co-Coordinator


Instructions for download of the e-book will be delivered by e-mail to the address you provide. Most orders are processed the same day, however in some cases please allow up to 3 business days for fraud prevention procedures. Once a purchase is made, there are no refunds.

All sales are in Euros, but during the order process you can select US$ or other currency equivalents.

To order, simply click on one of the price links to proceed.

Type Price
For use by one individual.
Not transferable.

29 Euros

For use by all employees and
current contractors of a single corporation.

99 Euros