For beginners: IT IS BEST SOURCE FOR LEARNING, THE CONCEPTS MOST OF THEM ARE OUT OF ORDER, THERE IS NO PROPER MAINTENANCE FOR CONTEXT FOR ITEMS, MOST OF THEM REPEATING
-IT LOOKS LIKE COPY AND PASTE WORK ETC.
-THE WORK NEEDS MORE CONTENT TO BE PLACED FOR BEGINNERS
-WORTHY, BUT BEGIINERS MORE STUFF TO BE PLACED IN IT
HIGH-LEVEL-ONE:
IT IS NOT WORTHY, TO USE FOR PRACTICAL PURPOSES
-NOT MUCH MORE GOOD CONTENT AVAIALBLE
-THE BASICS AND NEXT PART THERE IS CONNECTION
-IT IS NOT GIVING MORE DEFINITION, EXAMPLES,, MORE EXPLANATION NEED TO PLACED
EXPERT- GOOD FOR NOOBS
THAT'S ALL