Reinaldo, The lecture is at 3 p.m. on Monday, in the conf. rm. (023 Robinson). It is 1 hour, including any discussion. About 10 students will attend. I suggest the following coverage: 1. Galaxy catalogs, with a brief assessment: what is their content, coverage, quality, obsolescence, etc. Including: (R)NGC, IC, Zwicky, UGC, ESOU, MCG; RCn (n=1,2,...), RSA, ESOLV, ZCAT. IRAS catalogs. Tully's Nearby gal.c. Whatever else you can think of. You may wish to bring a few examples from the library, so they know what to look for. What are the problems with the catalogs (photometry, completness...) Major compilations of useful data: Texas photometry, where to find surf. phot., spectroscopic info, etc. Remember: this is for all kinds of galaxies, spirals included. Active galaxies: Hewitt & Burbidge, Veron**2, Arp and Arp-Madore atlases... How to get data in machine forms: NSSDC, CDS, authors ... Ongoing efforts: surface photometry surveys: us, Madore, 7S, ESO key projects. Deep galaxy catalogs (Durham, Cambridge, future Caltech, from the POSS-2 scans). 2. Photometry of galaxies: a brief overview of techniques, problems, what are the typical and the best levels of errors. Anything you wish on surface photometry. Maybe a bit on the spectroscopy, e.g., redshifts and vel.disp. using Fourier methods. They should at least know what are the methods, if not the details. They should understand what is the state-of-the-art level now, both in terms of surveys (size/coverage), and data quality, and what to expect in the near future. The level of knowledge you may expect from the students is ~ Mihalas & Binney, Chapter 5, maybe a bit more. Class discussion is strongly encouraged. It is a fairly apathetic class...