Náčrtník, zápisník a příručka v jednom. Kniha je unikátní pracovní nástroj pro grafiky a studenty. Obsahuje zmenšeniny běžných formátů (obálky, vizitky, CD atd.) pro vytváření návrhů; informace o papírových a digitálních formátech atd. Text anglicky.

A sketchbook, notebook and reference book in one, Sizes May Vary is a unique working tool for graphic designers and students. The sketchbook area provides a space for sketching and visualizing, containing more than 200 pages of thumbnails and scale line drawings of commonly reproduced formats, including stationery sets, letterheads, business cards and compliment slips; envelopes, mailers and postcards; CDs and DVDs; jewel cases; and digipacks, posters and billboards; and, book spines, covers and signature thumbnails; and browser windows and banner ad spaces. A 16-page reference section provides essential information on a range of topics, from international paper sizes and digital formats to measurement conversion tables. Plain paper and graph paper, signature sheets and a notebook area offer extra space for ideas and thoughts.