Revert "Revert "b8.html added""

This reverts commit ca50b86c6d8a29f97547577b80163d04aee6f018.
Revert "Revert "b10.html added""

This reverts commit 788212a79c18273f443e5a6ed415c8cf618f2b21.
Revert "Revert "b4.html added""

This reverts commit be908317da38171a29aec737d4d7d88e360f842a.
Merge branch 'RecoverBooks'