Hilchesa Limeshicha Practical Halachos for the Era of the 3rd Beis Hamikdash

"How delighted Hashem will be when He comes to end the galus and finds the Jewish people knowledgeable in the entire Torah, even those halachos that are not practiced at this time... What a zechus for those who studied these halachos, and for all of Klal Yisrael, to be spared the embarrassment of basic illiteracy in a whole part of the Torah..."

The Chofetz Chaim, Torah Ohr 9

"A very important work, teaching us the practical halachos of Taharos that we'll all need to know as soon as Mashicah comes. In my opinion, this sefer should be translated into all languages spoken by acheinu Bnei Yisrael; it is a unique sefer and very much needed."
From the haskamah of HaRav Yaakov Forchheimer