Assuming you are talking about D&D 5e: The Player's Handbook will allow you to create fully featured first level characters using the Charactermancer. Advancement beyond first level is planned for future development. All spells and equipment from the PHB are drag and droppable in a manner similar to the SRD. It also includes a Character Asset Pack, including tokens and illustrated handouts. The Monster Manual gets you fully-prepared and statted drag and drop tokens, with artwork, lore and clickable actions on the character sheet. The Dungeonmaster's Guide is not available at this time. In the case of the Compendiums/Books/Modules that are in the Roll20 Marketplace, you get the entire text of the books with artwork, and indexed content. You can also elect to share your Compendiums with your players, based upon your subscription level. Let me know if you have any more specific questions, and I'll answer what I can.
