A celebration of Jan Nathan’s life has been arranged by PMA, the Independent Book Publishers Association, the organization she led for more than 20 years. Nathan, who died last month, will be remembered at an event scheduled for August 18 at the Portofino Hotel in Redondo Beach, Calif. The memorial, scheduled from noon to 4 p.m., will take place in the Pacific Room, and guests are invited to come and share memories of Nathan as well as offer their condolences. A more formal program, led by former PMA president Don Tubesing, will begin at 1 p.m. Those planning to attend are asked to RSVP to lisa@pma-online.org by August 9.