The Professional series contains information on Jickling's architectural projects and architectural associations/firms of which he was a member. There is information on the firm he founded, Jickling, Lyman & Powell, including meeting minutes, brochures, corporate resolutions, and stockholder's agreements. The assorted projects folder includes: drawings for Woodfield Mall in Schaumburg, Illinois; a news release for Birmingham's first exposed steel parking structure, which involved Jickling's firm; and a directory of The Mall at Short Hills, New Jersey, with markings possibly made by Jickling. There is also about half a linear foot and two outsize folders of Jickling's architectural projects. These include drawings, blueprints, and correspondence concerning the structures. The unidentified folder contains drawings with no label. Jickling's involvement with Christ Church Cranbrook is professional and personal in nature. Large architectural drawings are included within the outsize folder. However, his other works-both professional and personal-are in their own category, "Christ Church Cranbrook."
Besides architectural work, the Professional series includes information on Jickling's community involvement. Approximately half a linear foot contains reports and publications of the City of Birmingham, of which Jickling was a member of various boards. There are also records of the Michigan Architectural Foundation, including minutes, bylaws, and financial statements. The bulk of the series contains information on the Oakland Land Conservancy, including correspondence, easement information, newsletters, and maps. For both the Michigan Architectural Foundation and the Oakland Land Conservancy, the "founding documents" folder contains documents such as mission and vision statements of the organization.