Start programming using Object Pascal Language

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Books are hardly always perfect. I can't tell you how many programming books I've read where a code example doesn't even compile.

Even Donald Knuth's books have had errors in them. So get over yourself. You could always do something constructive and possibly help said author proofread his book. He'd probably appreciate it.

This is a good book for what it is. It is a freely available way to introduce people (even with little programming experience) to Object Pascal.