First I have the book in my inventory(backpack) but it dont show in the pc and yes i found DEV's post suggesting using console command, tried it but didnt work. Thinking of starting a new game and use the cheat only for girls stats and money.
Ya, cheating all three books into your inventory will break the event. Remove all three and buy book 1 normally. You might have to use a renpy save editor to unread the two books you read.
Try these console commands to unread the books.
Shift + o to open the console,
Type;
$ read_book1 = False
$ read_book2 = False
$ read_book3 = False
You might want to undo Jacky's pre-shoot quizzes as well.
$ passed_ph_test_1 = False
$ passed_ph_test_2 = False
$ passed_ph_test_3 = False
Then to remove the books from your inventory, try;
$ inventory.drop(ph_book1)
$ inventory.drop(ph_book2)
$ inventory.drop(ph_book3)
When D.S.-Sama made the mod, he made it so you can add all the books into the inventory at once, but I coded the game so that you can't get the second book until after you've acquired the 1st book, read it in your room, and I think passed it's quiz with Jacky at the warehouse, and same with the 3rd. Cheating all of them into your inventory breaks that whole chain of events. For the next release I've asked DS to remove the ability to cheat the books into the inventory, so hopefully we'll have fewer problems with this issue.
typing those console commands above should reset everything in your save and allow you to begin the sequence of events again.