I'm not sure attack speed actually does anything. I upgraded it and it didn't change the experience I was gaining per second and it looks to be killing things the exact same speed.
I'm not sure if this was a change or not but for some reason today I went through a whole ascension without finding a sword with lower than 1.80 attack speed. This is really weird because finding lower attack speed swords was no problem before.
I also would like some text saying that you can't have multiple of the same book because I also now how a useless book the 550 fuel costing union shortcut book =/.If a refund were possible that would be very nice.
 "Ayumilove Idle Story"){kind=icon}
 "DPS Idle"){kind=icon}
 "Thrones of Fantasy"){kind=icon}
 "Dangerous adventure"){kind=icon}
 "The Last Stand: Dead Zone"){kind=icon}
 "Saving the Company"){kind=icon}