The following resources contain additional information on ITIL. Please use them to get more in-depth knowledge on this topic.
ITIL Training Guide - This page contains basic of ITIL and guidelines for ITIL training.
ITIL process map on Wikipedia - This page contains ITIL process map, ITIL roles, implementation, checklist etc.
ITIL complete guide on wikipedia - The wikipedia page on ITIL.
ITIL complete guide on axelos - The official page of ITIL.
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