Classic books:
* Car electrics F.H. Kirsch (17th edition)
* Electrical equipment of cars K.F. Maximov (8th edition)
* Handbook on electrical equipment of cars E.I. Shmukler (12th edition)
Modern editions:
* Electrical systems for car repairs R.L. Kincaid (12th edition)
* Modern electrical equipment of R.B. cars. Show (7th edition)
* Diagnosis and Repair of Automotive Electrical Systems by J. Derek Lenton (2nd Edition)
E-books and resources:
* Automotive Electrical Repair – MIT OpenCourseWare (https://ocw.mit.edu/courses/mechanical-engineering/2-007-design-and-manufacturing-i-fall-2002/)
* Handbook of electronics for cars – AllData (https://www.alldata.com/diy/en/)
* Electrical diagrams and documentation – AutoZone (https://www.autozone.com/repairinfo/repairguide/repairGuideContent.jsp?pageId=0900c15280147d17)
Additional recommendations:
* Subscription to an industry magazine (such as Modern Tire Dealer or Automotive Service Association)
* Attending seminars and trainings
* Participation in forums and online communities
* Use of diagnostic equipment and software