The materials in this Project include the stimuli, test materials, data and norms from a set of experiments Turoman & Styles (2017). With these materials you can: • replicate/check our existing analysis • do your own exploratory analysis to test a different hypothesis • replicate the main experiment (letter guessing) on paper (using the Test_Kit), or in a different paradigm. • use these normed stimuli in new experiments with different designs. The collection includes the full set of 56 letter pairs representing the /i/-/u/ vowel contrast in ancient and unfamiliar writing systems. Further details about the development of this stimulus set is included in the main article. The citations for each glyph pair are included in the Stimulus Folder. People guessed which of the glyphs in each pair was /i/ and which was /u/. Interested in blind analysis? Glyphs from each script have been randomly allocated left-right locations and names which mask their identity (using the filename convention BLIPxxLB or BLIPxxRB). We have marked each item in the project for whether it contains information which is blind to the identity of the letter. The entire experiment can therefore be run without experimenter knowledge of which letter represents which sound. The decoding_sheet is included in the Stimulus Folder. •••••••••••••••••••••••••••••••••••••••• This Project was supported by NAP Grant M4081215.100 from Nanyang Technological University to SJS: 'The Shape of Sounds in Singapore'. Full writeup: • Turoman N and Styles SJ (2017). Glyph Guessing for 'ee' and 'oo': Spatial frequency information and sound symbolic matching in ancient and unfamiliar scripts. Royal Society Open Science. Preliminary Project reports: • Styles SJ (2014). What can ancient and unfamiliar scripts tell us about sound symbolism? Poster preented at International Multisensory Research Forum (IMRF), Amsterdam. Retrieved from Figshare https://dx.doi.org/10.6084/m9.figshare.3187387 • Turoman N & Styles SJ (2016). How well do humans capture the sounds of speech in writing? ICMA Array, Lindborg PM & Styles SJ (Eds.) Special Issue: Proceedings of Si15, Singapore, August 2015, 43-44. https://doi.org/10.6084/m9.figshare.4216404