The books referenced are at an IBM site; this may result in an occasional off-hours unavailability and/or long response times.
The books are listed within (sub)product, which is the way IBM lists them. This is not done to make individual books difficult to locate, although that often is the unfortunate result.
The ABCs of OS/390 Systems Programming
|Volume 1: Intro to OS/390; Storage; Hardware; TSO; MVS Delivery ["ABC1"] - PDF | HTML|
SA22-7201: ESA/390 Principles of Operation ["POO"]|
SC27-0806: OS/390 DFSMS Program Management R4 ["PGM"]|
GC28-1794: OS/390 V2R10.0 JES2 Introduction ["J2I"]|
SC28-1740: OS/390 V2R10.0 SMP/E User's Guide ["SMU"]|
SC26-4940: High Level Assembler for MVS & VM & VSE V1R4 (HLASM V1R4) Language Reference|
All OS/390 V2 R6.0 Bookshelves (current 9670-RB4 release)|
All OS/390 V2 R7.0 Bookshelves (current Multiprise 3000 release)
OS/390 Internet Library (all releases)
z/OS Internet Library (all releases)