Nowadays, i can see most of the freshers are joining into Business Intelligence technology side. It is a good sign.
Those who are all want to learn SAP Business Objects, you can follow the below links. It has very easy explanation.
Here is the collection of videos to learn Web Intelligence Report in SAP BO
Real Time Scenario in Webi - Advanced scenario in Webi,
https://youtu.be/1pMI12iYb-ESAP BO Query Properties -
https://youtu.be/5qjd8kbYbHcWEBI Element Link -
https://youtu.be/b_D_PAI4N_Q &
https://youtu.be/zTfbnQi70I4Pre-Defined Webi Expressions -
https://youtu.be/3gGxhQd4TcE &
https://youtu.be/qsooNc1ub2IWebi Report Change source -
https://youtu.be/RgEyJVgMnvIWebi Input Control -
https://youtu.be/Gpf3AIpLkRMConditional Formating in webi -
https://youtu.be/ogIW5xkbQJwWebi Aggregate Functions -
https://youtu.be/LV-ZvndKc_EWebI - Break & Subtoatal -
https://youtu.be/r39C3BrCC-UFREE hand SQL Data source in Web Intelligence | SAP BO | Advanced -
https://youtu.be/UJ0JOqf5vpYFREE hand SQL Data source in Web Intelligence | SAP BO | Basic -
https://youtu.be/ueUJhY-XB3wBusiness Layer View in Universe | SAP BO -
https://youtu.be/SRGXtlN_EOk#MULTIVALUE Error in Web Intelligence Report | SAP BO -
https://youtu.be/5YCSv6VICxYParameter & List of Values (LOV) in Universe | SAP BO | WebI -
https://youtu.be/J3AnCZ1UlbAWeb Intelligence Template document - CSS - Advanced -
https://youtu.be/7yv1eatinRQWeb Intelligence Template document - CSS -
https://youtu.be/jVtREQJDt60Filter Bar option in Web Intelligence -
https://youtu.be/KXRv-qdBHfkDrill Option in Web Intelligence - Advanced -
https://youtu.be/JDXInAETZsEDrill Option in Web Intelligence - Basic -
https://youtu.be/_D78AN_5O6gNavigation Path (Hierarchy) in SAP BO Universe -
https://youtu.be/1O3lkzOuhUs