High-energy photoproduction

Much interesting experimental data on high energy photoproductionhas become available in the past two years and I regrettably have had to make an arbitrary lower limit of 2 or 3 GeV.Although many new results are included, the following is more in the nature of a general review of the subject, and thus includes many things discussed at previous conferences.l-3 See the' review of Rollnick for a discussion of the low energy results.