Sap E Books -
E-books teaching developers how to build cloud-compliant extensions without modifying the standard SAP core code. How to Maximize Knowledge Retention from E-Books
If you are just starting, focus on "Introduction" guides that cover navigation and core concepts. sap e books
Which specific are you focusing on (e.g., S/4HANA, ABAP, BTP, Fiori)? sap e books