I have two old books I still resist to throw away:

• Programmieren mit PASCAL by Ruedeger Baumann (1980) which contains many small exercises for learning how to program
• Artificial Intelligence and Computer Games by Richard Bartle (1985) - simply a classic from the author of MUD!

On the other hand, my old K&R has been sent for recycling long ago (I never really liked it anyways)

So long, Rata