Reddit Resources of course:
For Tasks:
Shawns_IHP4_All-In-One_Task_Guidance.pdf
Log into WGU and then download the all in one guide - https://srm--c.na127.content.force.com/servlet/servlet.FileDownload?retURL=https%3A%2F%2Fsrm--c.na127.visual.force.com%2Fapex%2FFDP%2FCommonsExpandedChatter%3Fcode%3DC841&file=00P3x00001l0TEOEA2&_CONFIRMATIONTOKEN=VmpFPSxNakF5TWkweE1pMHlORlF4TlRveE5Eb3dOQzQxT0ROYSx5Tzg4QWJGRnV0RW8weFlWbUJaeFdVLFlUQmhOamht&common.udd.actions.ActionsUtilORIG_URI=%2Fservlet%2Fservlet.FileDownload
From there it'll give you all the details for what to read and where. All books and chapters are available in the course chatter: https://srm--c.na127.visual.force.com/apex/FDP/CommonsExpandedChatter?code=C841