In preparation for trial, expert witnesses are often retained and briefed based upon reports and documents provided to them from counsel. Two types of work product may be used to prepare documents and internal memorandum which are subsequently given to an expert witness: 1) fact work product, and 2) opinion work product. If memorandum prepared by a law firm in anticipation of litigation contains the attorney’s opinions relating to potential theories of liabilities, references to the expert’s opinions, and factual summaries of his client’s records, the attorney’s personal notes and records about the proposed arguments constitute protected work product. Whealton v. Marshall, et al., 631 So. 2d 323, 325 (Fla. 4th DCA 1994) (holding the law firm’s internal memorandum used in preparation for litigation were not discoverable work product).