Porting to BeOS

This is a book written in 1997 by Martin "MC" Brown. He has now released a pdf version of the book. If you'd like a dead tree version of the book you can still find it on Amazon and others, either new or used. Here's the  pdf of the book. MC is still active writing books, most here is his blog:  planet.mcslp.com

This book contains a lot of information, some of it a bit dated, but much of it still applies to porting apps to Haiku.