Hello... I was perusing Amazon.com, trying to get my hands on the "Be Advanced Topics" book.. and found several BeOS development books for a very reasonable price... they are used.. but I paid: $12.00(US) for Be Advanced Topics $25.00(US) for "Practical File System Design with the Be File System" They also have Programming the Be Operating System and the Be Developers Guide (both of which I already had) for $10-15(US) each. -Cuyler