Our Ironclad Guarantee
You must be satisfied. Try our print books for 30 days or our eBooks for 14 days. If they aren't the best you've ever used, you can return the books or cancel the eBooks for a prompt refund. No questions asked!
We got our start 40+ years ago by publishing practical books for IBM programmers on the languages they were using every day: COBOL, CICS, DB2, and JCL. Those subjects have stayed very stable over the last 20 years…and the programs that were written then have remained in use in many enterprise shops…so our books still work! In fact, if you’re working with COBOL, you’ll probably want to have most of them close at hand.
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If you're a college instructor who would like to consider a book for a course, please visit our website for instructors to learn how to get a complimentary review copy and the full set of instructional materials.