En face coherence microscopy or flying spot or full field optical coherence tomography or microscopy (FF-OCT/FF-OCM) belongs to the OCT family because the sectioning ability is mostly linked to the source coherence length. In this article we will focus our attention on the advantages and the drawbacks of the following approaches: en face versus B scan tomography in terms of resolution, coherent versus incoherent illumination and influence of aberrations, and scanning versus full field imaging. We then show some examples to illustrate the diverse applications of en face coherent microscopy and show that endogenous or exogenous contrasts can add valuable information to the standard morphological image. To conclude we discuss a few domains that appear promising for future development of en face coherence microscopy. tomography with a Linnik microscope," Appl. Opt. 41, 805-812 (2002). 6. L. Vabre, A. Dubois, and A. C. Boccara, "Thermal-light full-field optical coherence tomography," Opt. Lett. 27(7), 530-532 (2002). 7. Handbook of Full-Field Optical Coherence Microscopy: Technology and Applications; Arnaud Dubois editor.Pan Stanford 2016. 8. M. Akiba, K. P. Chan, and N. Tanno, "Full-field optical coherence tomography by two-dimensional heterodyne detection with a pair of CCD cameras," Opt. Lett. 28(10), 816-818 (2003). 9. L. Yu and M. Kim, "Full-color three-dimensional microscopy by wide-field optical coherence tomography," Opt.Express 12(26), 6632-6641 (2004 Hüttmann, "In-vivo retinal imaging with off-axis full-field time-domain optical coherence tomography," Opt. Lett. 41(21), 4987-4990 (2016). 44. M. Villiger, C. Pache, and T. Lasser, "Dark-field optical coherence microscopy," Opt. Lett. 35(20), 3489-3491 (2010). 45. E. Auksorius and A. C. Boccara, "Dark-field full-field optical coherence tomography," Opt. Lett. 40(14), 3272-3275 (2015 4948-4956 (2008). 107. C.-E. Leroux, F. Bertillot, O. Thouvenin, and A.-C. Boccara, "Intracellular dynamics measurements with full field optical coherence tomography suggest hindering effect of actomyosin contractility on organelle transport," Biomed. Opt. Express 7(11), 4501-4513 (2016). 108. J. Schmitt, "OCT elastography: imaging microscopic deformation and strain of tissue," Opt. Express 3(6), 199-211 (1998